Scan advice

[Echo654]

Namechanged to ask this because I probably sound really thick . I’m in my third trimester and have had 5 scans . The first was at 4/5 weeks then 6 then 13 , 21 and the last at 28 . They’ve all been the same measurements within a few days .

Is there any way they can be wrong ? I slept with two men 34 days apart and all the scans point to the second man being the father . Is there any way is possible that the first man is ?

I have anxiety and this has been playing on my mind for a long time . So is it possible that either the scans are wrong or that the first man could still be the Dad even if the scans line up to the second man within 3 days ?

IME scan and due dates are only an estimated guess. They can be out by quite a few days. I know exactly when DD1 was conceived. She was the result of a one-off contraception failure, with absolutely no chance of another date around that time. They had her down as being conceived a week before we DTD. DD2 was planned but we weren't exactly trying very hard so I also knew when she was conceived. Her due date was 4 days out IIRC.
I believe scan measurements can be up to 15% out (either way), and longer/shorter ovulation cycles or sperm surviving and fertilising an egg a day or so later can effect EDD or your idea of when you think your EDD should be.

If there are two possible fathers around conception then you'll need a paternity test to know for sure.

Sorry brain fart. My head stuck on the 3 days mentioned at the end of your post. 34 days out: highly improbable it's man #1. (My brain had 3 days between each man = could be either of them)