Unknown due date?

[Honey315]

I had sex for the first time with my now husband and became pregnant. I hadn't had a period in months for the fact that I was trying out the shot (contraceptive). I've had 3 different due dates.
Should I count 40 weeks from the day I had sex and expect that to be my due date? Can anybody relate?

[rikarena90]

Either count 3 months back from the dat you conceived or 3 months back from last menstrual in my case it worked my due date is in July I counted 3 months back from Oct  23

[missymay34]

Count 38 Weeks from the date you guys had sex would be my best answer

[Chatybaby]

38 weeks from the time of intercourse would be closer to the right due date

[Combs7]

Then I would count 38 weeks from the day you had sex since that was the likely time of conception. They count 40 weeks from your last period which includes 2 weeks before actual conception.

[Honey315]

We only had sex that one time and soon after found out I was pregnant. My first ultra sound wasn't until I was about 5 months and she couldn't tell me an accurate due date because the babies genes take over and there's no way  of telling?

[missymay34]

It depends on how many times you guys have had sex to determine that but go with you're first ultrasounds that should be the most accurate.