Medical Questions > Pregnancy Forum > Pregnancy Calendar Conception : When did I Conceive ? Forum

when would my baby b conceived and due?

if i had sex on the 16th of march when would my baby b conceived and due
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replied December 17th, 2011
Community Volunteer
Your baby could have been conceived any time from about March 15 until March 22.

Due date: between Dec 6 (if conception date is March 15) and Dec 13 (conception March 22)

The question is a bit strange. Normally the conception date is determined from the due date or gestational age?

Best of luck!
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replied January 12th, 2012
Active User, very eHealthy
Um, you can't conceive the day before you have sex. If you have sex on March 16 you could have gotten pregnant March 16 through March 21. Sperm also only lives up to 5 days in the body and is not certain that it can fertilize for that long, so the most likely days are March 16 to March 19, though it is possible up until March 21.
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replied January 12th, 2012
Community Volunteer
Of course you can. The egg stays alive for up to 24 hours after ovulation. So you can ovulate (which is your conception date) and then have sex within the next day. Viola, conception before the sex.

Generalizations is seldomly useful when dealing with science.
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replied January 12th, 2012
Active User, very eHealthy
Ovulation date does not = conception date unless you conceive (fertilize the egg) on the day you ovulate. You can ovulate and then conceive up to a day later. In my case, I ovulated on Dec. 4 and I conceived on Dec. 5.
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replied April 1st, 2013
help
If I had sex on the 25th 27th an then 31st of december I had a period. In jan between the 1st an the 5th it lasted 3-5 days I think I had a period in feb I'm sure I did between the 1st an 5th my periods are the same every month. I got bk with my ex an had sex with him on the 11th feb till I found out I was preg 4 weeks ago an now I think I'm 9 weeks as I done test anit said 3+ weeks plus on the 9th of feb is it my ex's as I'm really worried please can u help this is my 3rd child I'm sure it is my ex's just need 2 put my mind 2 rest
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replied April 2nd, 2013
Active User, very eHealthy
From what I could make out from your message, it sounds like it's your ex's. However, you didn't provide any other dates of sex with anyone else to compare it to, so it's not possible to say for sure.
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replied April 2nd, 2013
I didn't have sex with any1 else just those three times in december then with my ex on the 11th feb I new it was his just really playing on my mind as I have never got pregenet so quick before thank you. For your help
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replied April 2nd, 2013
I meant the 9th of march I done a test an it said 3+ weeks
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