# How do you calculate your due date if your last period was 18 days long?

### How do you calculate the day on which you got pregnant?

If you can remember the day of your last period, you count 14 days and that should be your conception date.

### How can a pregnancy calculator be used to find a baby's due date?

A pregnancy calendar is used to calculate a baby's due date. A due date calculator asks for the first day of your last period which will then calculate the number of days you are pregnant and when your baby is due to be born.

### If your last period is aug 2008 when is your due date?

It depends what day your last period started. You can calculate your due date here: http://www.amazingpregnancy.com/duedate/index.html

### If you are 10 weeks and 3 days pregnant when will you be due?

Assuming 10 weeks and 3 days is the time since since your last period, your due date will be at 40 weeks. A simple rule to calculate the estimated date of delivery is to add 9 months 7 days to the date of your last period. Eg. Last period = 14 Jan 2009 Estimated date of delivery = 21 Oct 2009 This is just an estimation. Only 3% of women actually deliver on their due… Read More

### How do you calculate the expected date of delivery?

Add nine calendar months plus 5 days to the first day of your last period and this gives you your EDD (expected date of delivery). Eg LMP 4th oct EDD 9th July.

### How many days does it take to conceive after your last period?

You can conceive a child 6 days before your period do date so the 20-25 day after your period ended

### What if you dont know when your last period was and am pregnant how do I calculate conception day.?

Find out when your due date is because you can work out your conception date from that

### What is an ovulation date?

An ovulation date is the date when your ovary extrudes an egg that has been growing in there since your last period. It is a fixed 14 days before your next expected period.

### If your last period was not 7 days could your conception date be wrong?

Conception dates do not depend on the length of your period. Your due date is based on the first day of your last period. Your baby was actually conceived about 2 weeks later.

### What if your period is August 10 when is your ovulation date?

Before you can calculate your ovulation day, you must first determine, the date of your last period's first day and you need to know your menstrual cycle. This two information is needed in order for you to calculate your ovulation using an ovulation calculator. The date of your period is not enough information, to calculate ovulation.

### If you i was conceived on the 23 of may 2009 when is your due date?

Depends on ur period date.. After 10 days of ur last period around 20th July or so :-)

### When you calculate how far along you are in pregnancy do you count week one as the start of your period?

To calculate an estimated due date you should count from the very first day (the day you started bleeding) of your last menstrual period.

### Is the scan date from your last period or when you conceived?

The scan date is from your last period.

### If you had a period january 25th but not in February when did i get pregnant?

Most women get pregnant 12 to 16 days after their last period. We have no way of knowing which date.

### If you are now 12 days late for your period how could you tell how far along you are if you are indeed pregnant?

You can google due date calculator, most of them will ask you to put in how many days long your cycle is the first day of your last cycle and it will calculate everything for you. If you are 12 days late and you ARE pregnant you are nearly six weeks.

### How do you calculate conception date?

To calculate conception you can go from the first day of your last period and add two weeks eg if your last period was on the first of the month then conception would have taken place at around the 15th . If you do not no the first day of your last period but no how many weeks pregnant you are then count back and minus two weeks eg if you are seventeen weeks on… Read More

### How does a women who hasn't went to the doctor determine how long in her pregnancy she is?

It can either be calculated by the date of ovulation if you know the exact date or you can calculate by the first day of your last period.

### When did you conceive if your due date in Nov.11 2009?

Usually ob/gyn's calculate the due date from the first day of her last period. Somewhere between the 16 or the 20 of February. Depend on when she ovulated, length of monthly cycle and the first day of her last period.

### What is the proper way to calculate ovulation?

If you are having a regular menstrual period, the proper way to calculate ovulation using a manual method is to take note when your last menstrual period started. Usually ovulation occurs on Day 11 to Day 21. You're most fertile day's starts with day 14 in your 28-day ovulation cycle. You can also calculate your ovulation by counting back from 12 to 16 days from the date of your next menstrual period. But if you… Read More

### When did you conceive if your baby is due April 19 2011?

You conceived on July 11, 2010. because Due date is an approximate date calulated by adding 280 days from last period. [On average, your pregnancy should last around 40 weeks, or 280 days, from your last period] so substract 280 days from April 19 2011 gives July 11 2011. Dr Rahul Parikh

### How is the delivery date of a baby calculated?

you add 280 days to a reliable first day if your last menstrual period

### How do you calculate date of conception using due date?

Dear Reader; One's first inclination is to go the calendar and count off nine months. (Good thought) Doesn't work that way. (Yes it does) Gestation occures in lunar months (no it doesn't) that is 9 times a 28 day month so you would start from one end or the other and count off that many days and see where that lands on the calendar. Ordinarily the due date is determined by first determining the date… Read More

### If you slept with someone on 8th feb would your baby be due 15th nov?

it depends on the date of your last period day. This is because if you have sex with the boy you wont become pregnant that day. Doctors calculate from the last day of your last period. There are many due date calculators online. http://www.babycentre.co.uk/tools/duedate/

### Your last period was 15th August Is it possible to conceive a few days before your next period is due Rather than using your last periods date as a guide us says 6wks pregnantdoctor says 9wks.?

please remember that the date due is just an estimate, it could be 30 days before or after, however with are two the doctors were only a few days off.

### How long is a human gestation time?

About nine months. To be specific is is 280 days after the last menstrual date. As the ovulation usually occurs on day 14th, it period of delivery is 266 days from the date of conception.

### Why has your expected date of delivery changed to an earlier time?

You might have started counting the days from when you conceived the baby, but the normal starting date is from your last missed period.

### Can you go by the last day of your period to figure out your due date?

Yes, and then your next one should be 28-34 days after

### If you are very regular on your period but last month it was 7 days late will you ovulate later in the month or will your ovulation day stay the same?

Your ovulation date will stay the same unless your period due date changes, in this case so will your ovulation date.

### How do you determine the date of conception if you are 12 weeks and 2 days pregnant?

Remember the 1st day of your last period. It should be somewhere between 14 to 16 days from that date. http://www.intmed.mcw.edu/clincalc/pregnancy.html

### What is ovulation time for 31 days menstrual cycle?

You will be able to come up with the exact ovulation date, if you know when is the date of your last period's first day and the ovulation cycle which is 31 days. This two information are required for you to be able to calculate the ovulation days.

### Do women have there period every month on the same day as the last?

Well it depends on the woman. Sometimes, it does seem to land on the same day as your last period, but for others, it changes date. For example, I never get my period on the "Exact" day as the Last. Its either 2-3 days earlier or 2-3 days later. So it all depends on the person.

### Your due date is 11th sept 2010 given by the doctors so you want to know iam in which week of pregnancy and when should you visit at your place for the delivery?

add 281 days to to your LMP to get expected day of delivary Due Date Calculation Pregnancy, on average, lasts 267 days (38 weeks) from conception. If you positively know your conception date, you can add 267 days to it for your due date. The following formulas can also tell your EDD: Date of the first day of your last period + 281 days = due date or Date of the first day of your… Read More

### How do you figure out conception date?

Count 28 days from the first day of your last period. Example. The first day of the last period being Sept 4th 2005. Conception is estimated at August 13th, making the due date; June 10th. Give or take 2 weeks.

### When did you conceive if your due date is September 15 and your last period was December 10?

December 24th give or take a couple of days.

### When was your last period if your due date is august 9th?

The most likely start date of the last menstrual period was November 2nd.

### How many days does a dogs period cycle last?

Typically a dog's period cycle will last for 21 days.

### Is it normal if your period came on the third of a month and then it came on the eighteenth of the same month is that normal?

Every woman is different, and the AVERAGE cycle length is 28 days. However, your cycle may be anywhere from 21-45 days, which would explain different days that your period falls on each month. I recommend that you keep a log on your calendar for the first day of your period each month. This will not only help you better approximate when your next period will be, but be extremely useful when trying to get pregnant… Read More

### You do not know when im due on do you count from the day you finished your last period if so how many days?

most women have a 28 day cycle, you count from Day One when you start your period to get the date for your next period

### How do you find out when you conceived based on the first day of your last period?

See the Related Link for "Conception calculator" to the bottom for the answer. For example, if the first day of your last period was January 22, the date of conception will be somewhere around 5th/6th February if you have a 28 day cycle. The majority of women ovulate 14 days before a period, and most have a cycle of around 28 days. From ovulation to birth is 38 weeks and for the hundreds of years… Read More

### My due date is Jan 26th of 2011 when did i get pregnant?

to approx work that out you get the date of the first day of your last period and count forwards approx 10 days this wil then give you your date of ovulation. Hope this helps

### How soon can you detect pregnancy by over the counter pregnancy tests?

usually they can test up to five days before your missed period. But i would wait until after you miss your period. If you don't have a regular cycle or don't know they date you are supposed to start your period, wait at least 19 days from the date you last had sex and then try a pregnancy test.

### Can you calculate what day you got pregnant from your due date?

The due date is calculated from the first day of the last menstrual period. It can also be calculated based on an early ultrasound. If you have an accurate due date, you can estimate the day of conception by counting back 38 weeks. SInce not all women ovulate on day 14 of their cycle, and stay fertile for 2-3 days after ovulation, this result will be +/- about a week.

### Can doctor tell you when you conceived?

They can have a very close date of conception, although it may not be 100% accurate. They will guess this by the date of your last period and the date(s) in which you had intercourse. Here is a link to a website that will help you calculate your date of pregnancy: * http://healthlink.mcw.edu/article/923526833.html

### How many months does pregnancy last?

Nine months Between 37 to 42 weeks is the average length of a human pregnancy. Obstetricians calculate a due date at 40 weeks from the mother's last menstrual period. This translates to approximately 9 1/3 months. (About 280 days).GOD bad answer i asked how many months!!!!!!!!!!!!!.......sorry.....NOT!!!!

### Can implantation bleeding start around the time of your period?

Yes implantation can happen 6-10 days after conception....conception occurs (typically with a 28 day cycle) 14 days after the first day of your last period and 14 days before your next start date.

### When did you conceive if your due date is Nov18?

usually what they do is they add on 9 months and 7 days from the date of your last period which working it back would take that to February 11th,you are usually fertile around the 9 10 11 12 days after your period,so that would make it around the 18th to 22 feb.

### How many days dos a period last?

your menstrual cycle (or period) can last anywhere between three and seven days..

### You had your period you believe in the middle to the end of June how can you determine when you got pregnant?

It would be good if you knew the exact first day of your last menstrual period. From that, add 7 days, then go back 3 months. That is your due date. For example, if the first day of your last period was June15th, add 7 days to that, so June 22nd. Then go back 3 months. That would be March22nd. That is your due date. That is usually confirmed by ultrasound.

### When calculating your due date do you go by your last messed up period or your last normal period?

You should go by your last normal period.