Ultrasound scanning is dependant on many different variables, it depends on the machine being used, whether it was abdominal or a vaginal scan and of course on who preformed the scan.
In the majority of cases the earlier the scan the more accurate. Was a fetal heart pulsation visible?
The gestation of the fetus can vary depending on your history, do you have a regular menstrual cycle, ie. between 28 and 30 days from the first day of one cycle to the first day of the next, if outside of this then your dates will vary as Naegels rule of pregnancy doesn't apply because you ovulate 14 days before your period starts. Were your last three periods of normal length for you? Were you on the Oral contraceptive/any other contraceptive or pregnant/ breast feeding or have any other event or medication that could have altered your body's hormonal response three months before you conceived?
If any of the above then using the 1st day of your last menstrual period won't be accurate.
Now unfortunately there are other reasons also, but the above has to be ascertained first.
5 weeks and 5 days ago...
Sometimes you could miscarry very early, but the body doesn't reject the fetus like it should. It does happen. My aunt thought she was 20 weeks pregnant, but when she went for an ultrasound fetus died many weeks earlier
Twelve weeks and one day before July 7 is April 13.
i had an ultrasound when i was 6 weeks pregnant, but by ultrasound, the pregnancy measured to be 5 weeks, so no fetal pole was seen yet. i think the earliest fetal poles can be seen is about 6 1/2 - 7 weeks. hope this helps :)
Most ultrasound machines don't list how far along you are on the pictures that are printed. The technician that is running the machine can have the computer calculate the age of the fetus using measurements.
Around 2.5 weeks ago.
zero to none
ABout 5 to 6 Weeks, not much there to see really. They are tiny tiny then. God bless
Subtract fourteen weeks (7 days x 14) from the date of the ultrasound.
You could see a heartbeat if they do a transvaginal ultrasound.
It means that the egg was fertilized 6 weeks ago
One can tell how far along they are in pregnancy by having an ultrasound. An ultrasound measures the fetus and then compare that measurement to what an average fetus is. If it matches to a 3 week fetus it means that one is 3 weeks into pregnancy.
The only sure way of knowing you are pregnant with twins is by ultrasound. An ultrasound at 8 weeks would show if you were carrying a multiple pregnancy.