Due date moved 2 weeks forward

[Lucyj96]

Hi everyone.

Just had 12 week plus 2 day scan and my due date has been moved forward 2 weeks.
It was based initially on my last period.I had an accident 2 weeks after my period used MAP but now pregnant.

could it be that period was actually implementation bleeding?

I’m now worried he isn’t father as this new date would mean he was conceived before we had sex?

what would a cut off date be to know I’m safe? Thank you

I really don’t know but just from my experience… I did IVF so know exactly when baby was conceived down to the day. But at my 12 week scan they still moved my due date 4 days forward. 2 weeks sounds like a lot though. How long before your current partner did you have sex with the other?

It was like about 3 or 4 weeks before.

did you have implementation bleeding?

Did your due date change at all carrying forward?

I had a tiny bit of implantation bleeding but I mean a string of brown blood on wiping at what would have been 7 days past ovulation. I wouldn’t have confused it with a period, BUT my friend also currently pregnant by IVF thought Hera hadn’t worked due to early bleeding that she mistook for a period.
My due date was changed from 4 Jan to 31 December.

I think you need more information to work yours out. Do you usually track your periods? Do you know when the previous one was? If you write this out with exact dates maybe it’ll look clearer.