When did I concieve?

[Minni09]

If my die date was Dec 17 and I delivered on that day, when did I concieve?

[smjmekg]

That's sounds right. You're pregnant for 40 weeks, which is equal to ten months, so your due date would have been Dec. I got pregnant in October and was due in July, and had my son one week exactly before I was due. (C-section cause he was breech.)

[Minni09]

No im asking because I didnt have a period in March. My last period was in Feb.

[smjmekg]

It's hard to say. Doctors go off the first day of your last period as to the first day you are "pregnant". BUT you don't ovulate until at least 14 days later depending on your cycles, and aren't pregnant until after you ovulate and the egg is fertilized. Women ovulate around 14 days BEFORE your period starts, so if you have a 28 day cycle then you would ovulate on/around day 14, if you have a longer cycle you would ovulate later. It's impossible to know EXACTLY when you conceived. If you know how long your cycles are and know for sure when your period was due, count back 14 days before your period was due and you would have conceived around that day. If your asking (sorry to insinuate) because you are worried about paternity, the only way you can find out for sure is to have a DNA test. After you ovulate the egg can take 6-12 days to implant and start giving off the hormone that shows the positive on pregnancy tests. You could have ovulated earlier or later than expected, it is not always exactly 14 days before your period starts. So you can see how it's pretty much impossible to tell exactly when.