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It is possible with modern pregnancy tests to have them come up positive 11 days after conception. You may have conceived a couple of days earlier scans may be out by that much.

2006-08-24 20:26:05
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Is the EDD given to you on your scan date from your LMP or by the date of conception?

EDD is ESTIMATED. If done by scan is 38 weeks from conception. An EDD is based on the LMP (last menstrual period) and not the date of conception. The ultrasound measurements are comparing the baby to the expected size of other babies at the same gestational age. The earlier the ultrasound is done in the pregnancy, the more accurate it will be. Hope this helps! Dr. B.


Is it possible for the effects of pregnancy to show up 24 hours after possible conception?

No this is impossible because you will not be pregnant 24 hours after intercourse. It takes in total 5 days for fertilization and conception to occur and for the embryo to form. At the earliest, pregnancy symptoms usually occur 14 days after conception but it can be earlier.


When it says that an ultrasound is most accurate at 12 weeks does that mean gestational age or the time since LMP?

The earlier it is the more accurate it is whether from conception or from LMP, but if you say 12 weeks you mean from LMP.


If you got a positive hpt on December 25th would conception have most likely occured on November 30th or December 11th?

Hi there. If you got a positive pregnancy test, it usually takes about 2-3 weeks and sometimes a lot longer for HCG to give a dark positive result. Based on the dates you gave, you most likely conceived on 11th December if not earlier. Congratulations. Conception could have occurred on either date. It would have occurred December 11th or earlier so it could also have been November 30th.


Can one determine the date of conseption closer that two weeks?

I am guessing you mean that you want to know your date of conception? It really depends on a couple of factors. If your normal periods are regular, you can be fairly accurate with conception date within a couple of days. Count back 14 days from when your period was DUE (ie but didn't come because you were pregnant) and this will be around the time of conception. Conception date will be within two days either side of this date. If you are pregnant now, an ultrasound will tell you very accurately what your conception date is. As long as you have an ultrasound within the first 10 weeks - the earlier the better. An experienced ultrasonic person can tell you down to the day - ie six weeks and three days.


Are you pregnant if you took 3 pregnancy tests and got different results and an ultrasound showed that you were not pregnant but your stomach is getting bigger?

If you have a test that shows a positive pregnancy result then YES you ARE pregnant. Forget the negatives. A positive is a positive. A ultrasound can not detect a baby till you are 6 plus weeks into your pregnancy. Actually you can see an embryo earlier than 6 weeks. You should go back to the doctor and get another ultrasound. This could be a molar pregnancy. See a doctor, they will be able to give you a blood test and tell for sure.


Are there any changes in the inner and vaginal area in the earlier stages of pregnancy such as one week after conception?

When one is pregnant, one of the possible signs is a change in coloring to blue in this area.


If the baby is born in may What is the earliest day of conception?

9 months earlier


At what week do you see heartbeat on ultrasound?

You can see the heartbeat, and even hear the heartbeat at your monthly ultrasound by your 17th week of pregnancy.. sometimes they can find it earlier.


When do you need a ultrasound?

Around 6-8 weeks (middle of 2nd month). But you can get it earlier if you feel the need. After the first ultrasound you should get on at least twice a trimester.


Could conception have occurred three weeks earlier than 2 first trimester and 2 second trimesters ultrasounds say?

No. If four ultrasounds all give the same date then that is accurate to about 5 days. Even one first trimester ultrasound would be sufficient.


Can an ultrasound scan be wrong by a month?

The date of conception can't actually be determined, but the fetal growth usually reflects how far along the mother to be is , so i believe an ultrasound is pretty accurate. It depends when in the pregnancy it is done. The earlier in pregnancy the more accurate it is. So at 7 weeks it is only going to be inaccurate by 3 or 4 days. If you have your first U/s at 8 months it is not nearly as accurate as babies vary so much in size.


Is it possible for symptoms of pregnancy to occur earlier than normal when carrying twins and if so how soon could it be after conception?

it doesnt matter if you are carrying twins or a single baby, the signs are the same and having twins doesnt make them sooner or stronger. usually if you have twins they cant tell until you are around 3+mnths unless you have to have an ultrasound for some reason. so the answer to your question is no they wouldn't appear sooner than someone carrying one baby. ob/gyn nurse


Can doctors tell how many days a girl is pregnant?

Yes. The earlier the girl gets an ultrasound, the more accurate the doctor's estimate.


Is it possible to hear a baby's heartbeat at 5 weeks?

No. 6 weeks at the earliest This answer is inaccurate. The earliest I have heard it picked up is at 5 1/2 weeks. It is very difficult to pick up on a vaginal ultrasound, and may not be an accurate heartbeat rate, but it is possible for a heartbeat to be located and heard earlier than 6 weeks.


Baby due date is 5 Feb 2000 what is the conception date?

Approx 9 months, 9 days earlier... do the math!


How soon can you take a test to see if you are pregnant?

Even if you get the most sensitive test out there, you have to have a buildup of the right hormone before anything will show up- which can take 6-8 days after conception, and conception doesn't necessarily mean intercourse... It is possible to get an early result, but only about 4 or 5 days earlier than your missed period at best. So for an accurate result - give it two weeks.


If you went to the doctor and they did an early ultrasound and said you were 5 weeks and 3 days pregnant could you have an early ultrasound at 3 weeks and 3 days pregnant?

There would be no gestational sac visible @ 3 weeks. YES At 5 weeks 3 days pregnant by ultrasound, you conceived 3 weeks 3 days earlier.


Can an ultrasound tell if you got pregnant 5 weeks earlier than you thought although you had 2 periods?

If you had 2 periods you werent pregnant at that time.


How do doctors determine that you are expecting twins?

Generally from the ultrasound, when there is more than one baby. However, before the ultrasound there can be some indicators, such as pregnancy symptoms being stronger than normal or your abdomen getting bigger earlier on in the pregnancy than it usually would


Can you Have a drink right after conception?

No. In fact, the earlier in pregnancy that the feotus is exposed to alcohol, the more damage it can do. You should not drink if there is even a possibility that you may get pregnant.


Your ultrasound shows mild increase in the cortical echogenicity of both kidneys but your renal tests are normal. Ultrasound tests done earlier never indicated this before Is this sign of kidney?

This is essentially a normal kidney ultrasound. A mild cortical echogenicity in both kidneys, and normal renal function can occur in pregnancy when your over-all blood volume is increased.


When is your conception date if your due date is february 25th 2011?

You most likely conceived on/around June 4, 2010 based on the average 28 day menstrual cycle. If you have a "normal" cycle, then you probably ovulated on June 4th. It's possible that you got pregnant from intercourse a few days earlier because sperm can live for 3-5 days inside the woman's reproductive tract. Women typically ovulate 14 days after the first day of their menstrual period. If you have a shorter or longer cycle, then your window of conception would be earlier or later.


Can melatonin give you a false positive pregnancy test reading?

No, melatonin would not give a false positive result on a pregnancy test, however melatonin does increase the amount of the hormone which pregnancy testing kits look for if you are pregnant so you may get a true positive earlier than normally possible. Many pregnancies are rejected by the body very early in development.


When should I go to the doctor with a cough?

As soon as possible, the earlier the better.