Can sperm stay in you on your period if you had sex before your period?

crysta

New member
I am trying to figure out why my due date is what it is.

I had sex on April 25 but didn't have sex until the 3rd (and just about everyday after that) and started my period on the 27 of April. Based on my last period and first ultrasound I would have a due date of Feb 1, 2010 and would of conceived on May 12. I had an ultrasound 4 weeks ago and I thought I was 27 weeks when I went in the tec told me I was 28 weeks and had a due date of Jan 23, 2010. If that is right I would of concieved on May 2nd. She said my baby was in the 90 percentile. Making him bigger than most babies. Would this affect what they think the due date is? Or cuold the sperm have stayed in me while I was on my period and conceived while I was still on my period?
 
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