Conception

[Adele1722]

Hi, I would really like some advice and options on something that is troubling myself and my family. My son has recently been told he will become a dad. But the dates don't work out at all. We are very concerned that although I never thought young girls were capable of this he may be getting told some little lies.
The due date of the baby is the 19/01/2019. Originally she told my son that her last period first day was the 15th of April, now she has said it was the beginning of April. The date this would of been conceived was the 7th of may. On the 11th of June 2018 she was told she was 8 weeks and 3 days in to the pregnancy. Please help can this be possible? As we worked it out that it would of been 7 weeks on the scan date if it was my son's. Any help appreciated.
Thanks.

I went for an nipy test and scan. I thought I was just 10 weeks, according to date of last period. The scan put me at 11 weeks one day. Totally doesn't work out! I can assure you the baby is my husband's!! Please give this poor girl the benefit of the doubt!!

It's very common to have a week or so discrepancy with dates at this early stage. Please don't read too much into it until she's had her 12 week scan, the dates will be refined then x

Dating a pregnancy is not an exact science so I would be extremely cautious about making any accusations that could break down relations and cause your son difficulties in having a relationship with a child that turns out to actually be his. Even if you know the exact date of conception it doesn't mean you know when implantation occurred and even then scans can bring up different dates than expected.
The only way you will ever know for certain is to have a DNA test.

She would have had to ovulate very late in her cycle if her LMP was beginning-mid April if conception were to happen on 7th May.

However, that's not entirely impossible as we don't know her typical cycle length.

The early scans can be inaccurate with dates, so you're best waiting until the 12 week scan. If the dates are still off with when your son had sex with her (is he 100% certain on HIS dates?) then he needs to have a conversation with her.

Try not to get too involved yourself, just be there for your son.

Hi all. Thank you so much for all your help and information.
I.hope this all works out for both them and the child involved.
Thank you. X

I'm over half way through this pregnancy and my dates still don't really make sense to me. I am 100% sure it's my partners so not hugely bothered by conception date. Ovulation is not an exact science, and sperm can live in the body for a few days I believe. don't jump the gun and accuse this girl of lying.

Don’t fixate too much on the dating of the pregnancy. The age of the pregnancy that was recorded at my 12 week scan would put me falling pregnant in September, but I actually fell pregnant in October as I had a full period in between. They told me it was to do with the fact that I have a short cycle, but for dating purposes they assume a 28 day cycle. It’s a big ol’ grey area!

My dates weren't right with my pregnancy either. I have only had sex with my partner for the last 10 years, so there was absolutely no chance of it being anyone else's baby. It really isn't exact. If your son is concerned then he should ask for a DNA test once the baby is born to make sure, but I wouldn't assume anything from this alone.

Unless there something like they only met on x date or he was out the country for weeks when you think she got pregnant then I wouldn't really get to bothered by it.

I had 2 early scans that put me earlier than I knew I was, then at 12 week I was almost a week further on than I know i am. Its not really a big deal and my midwife said its totally normal and not to be considered by it.