Avatar universal

conception date

from my 12 week ultrasound I was told i was 12 weeks a 5 days which means I would of been pregnant since March 11th??  Does that mean I conceived on March 11th or would I have conceived between 7 & 14 days afterwards so between March 23rd & March 28th as this is what it's showing me on the conception calculators online? the reason why im confused is because I slept with someone on March 7th, and  I got back with my ex boyfriend on March 11th, i didn't start feeling symptoms of sickness until first week of april, can you please help?
5 Responses
Sort by: Helpful Oldest Newest
1712422 tn?1443337501
If you conceived in march you would be 24 weeks not 12…don't you mean MAY??

Conception May 28th
Helpful - 0
Avatar universal
No I was 22 weeks yesterday, but on my first scan judging by the dates they gave me my due date is december 16th 2011 and I would of got pregnant March 11th, but conception calculators online and my doctor said I would of conceived around 20th - 28th march?
Helpful - 0
726324 tn?1324074610
What was the date of the ultrasound? If they put u at 12 weeks 5 days then count back 10 weeks 5 days and this date would give u the conception date give or take a day or so.
Helpful - 0
1194973 tn?1385503904
The important thing needed is LMP. Be warned though it's extremely doubtful we can give you an answer. You slept with these guys 4 days apart, and nothing but a DNA test will give you an answer.

When I did a conception date based on your due date, it's gives your LMP as of March 11. You wouldn't have gotten pregnant then, pregnant is just dated from LMP because doctors don't know when a female ovulates.
Helpful - 0
Avatar universal
If you had multiple sexual partners within a close period of time you can't go by what the guessed conception date is. You'll need a paternity test. Sperm can survive inside a woman for up to a week waiting for an egg to be released.

If you slept with more than one man within a week of ovulation any of those men could be the father. Let them all know and once the baby is born get a dna test done.
Helpful - 0
Have an Answer?

You are reading content posted in the Pregnancy Community

Top Pregnancy Answerers
13167 tn?1327194124
Austin, TX
Learn About Top Answerers
Didn't find the answer you were looking for?
Ask a question
Popular Resources
Get information and tips on how to help you choose the right place to deliver your baby.
Get the facts on how twins and multiples are formed and your chance of carrying more than one baby at a time.
Learn about the risks and benefits of circumcision.
What to expect during the first hours after delivery.
Learn about early screening and test options for your pregnancy.
Learn about testing and treatment for GBS bacterium.