Which Is The Date Of Conception

4 Replies
notnow - June 7

If my lmp was 3/1/06 and I had intercourse on 3/7/06 and then several times the week of 3/13/06 which week would be conception date?

 

LadyD - June 7

The conception date is the day the sperm implants. If you know how long your cycle is, count about 14 days back from your next period and that would be the day. When I was pg, my lmp was 12/26, had s_x 1/9, and my conception date was 1/25 and I was due 9/29. Hope that helps!

 

Trish# - June 7

It depends on when you ovulated. Is your cycle regular, like clock-work? If so, figure out the date you WOULD have started your period and count back about 14 days. That is around the time you ovulated. If your cycle is irregular then there really is no way of knowing which week you were ovulating. FYI, my dr. does not go by LMP dates at all, rather ultrasound measurements. They are more accurate at predicting the gestational age of your baby than LMP is.

 

notnow - June 7

my cycle is usually like clock work. 28 days. My ultrasound showed the baby measuring a week farther but my doctor said he wasn't going to change my due date. Does that mean he thinks conception date as 3/16 like my regular doctor. I'm trying to figure out which night it happened.

 

Trish# - June 7

It sounds like your dr. is thinking you conceived the week of 3/13/06.

 

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