Can scan be wrong ?

[Elliebear27]

Name changed for this as its embarrassing.
No judgemental comments please , just an answer if anyone can help! I slept with two men 5 weeks apart and have really irregular cycles .

I had an early scan after a bleed and the scan showed just a sac with no foetal pole , two weeks later I was dated 6+3 meaning I’d have got a bfp at only 9dpo if the second man was the father and I’d be measuring 5 weeks small if the first man was .

12 week scan my dates are moved forward by three days so still in line with the second man . At 20 week scan my dates stayed the same and measurements all normal .

So my question is , is it possible for the first man to actually be the father and the scans be wrong ?

Very very unlikely the scan is that wrong

No.
There's a minuscule amount of room for error but not that much.

It's man two - hope this is ok for you and him

Thank you .
Yes Bengalcat , man two is my partner of 11 years . We split briefly and both stupidly slept with other people .
I have had awful anxiety for a long time and have spent months worrying about the possibility the baby isn’t his even though rationally I know it must be .

Sperm can live for at most 7 days, so if there was 5 weeks between the two partners, it's impossible that anyone but the person you were with around the time of ovulation for your correct scan dates to be the father. I think from what you said that is your partner? 12 week scans can be adjusted by a few days, but they are never off by weeks.

I'm not sure on dates op so i can't help, sorry, although advice above sounds good to my untrained ear.
I'm posting because (I genuinely mean this non-judgementally) if there's a possibility of it being 2 separate people (esp if your partner also slept with someone else) then you should get yourself tested for s.t.d's for the sake of the baby who can become infected.

Sorry to say that and good luck x