Thank you for your advice and for taking the time to reply ... you are 100 per cent right and a know a need to sort things out and work through some stuff ... a had the first two scans done at a proper medical place called baby bond .. they are all across the uk and then the one tomorrow is the 12 week nhs scan done in a hospital so that’s one is if you would like a real deal one .. so may shed some light or help me maybe work out the dates or who’s it is.. wish full thinking but a guess a can cling to that until a know for sure
The current partner is not the nicest .. he never used to be like that as time has went on as we have been together a very long time
Unfortunately, your second scan does no more than confuse the issue.
Embryos begin as one cell, and then divide into two, and then four, and then eight, and then 16 and 32, at a known rate. But after a while, some begin to grow faster and some grow slower and some continue to grow at the "average" rate. This means if using an ultrasound to try to determine paternity at 6 weeks, the margin for error is pretty small, perhaps it could be 1 day off. Because that possible divergence has not begun to really happen yet. But by 12 weeks, doctors will say that any estimate of a due date will be +/- 7 days. Your first ultrasound in your seventh week would therefore have perhaps had a one- or two-day margin for error. Your ultrasound in your 11th week would have had about a 6-day margin for error, meaning a due date based on it could be six days off either direction. The second ultrasound does not help you. Now if your third ultrasound tied in with either the second or the first, that would help you understand if perhaps the date from one was just a mistake. But in general I tell women to believe a 6th week over an 11th week ultrasound.
Do you have the money to do prenatal testing? I don't like to recommend to women that they be sneaky, I am for transparency in relationships (especially when you were broken up at the time, for heaven's sake). I also feel the truth will eventually come out no matter how much the woman wants to hide the problem. But if you are adamant that you cannot tell your boyfriend (not just that you think it would be inconvenient or embarrassing, but if you really have a material reason such as domestic violence), there is something called discreet testing that can be done with a guy's toothbrush or a swab from his drinking glass. This is done by one of the top labs, Ravgen. It all hinges on you having the money.
If you do prenatal testing, be sure to test with both guys. One will get a yes and the other will get a no, and their tests will back each other up. We have gotten a lot of posts here from women who only tested with the guy they didn't want to be the dad, and then they got a "no" for him, and then they became really nervous about lab error. Don't put yourself in that spot. You need to know, and it sounds like you need to know before you wind up lying to your boyfriend.
Well, sweetheart, I think you are going to have to open your mouth. What kind of pickle will it put you in if you have to admit to the one guy that you had sex with the other?
The reason I say this is your first scan indicates the 8th, not the 4th, as conception date. As you can see, this means the ex has a good chance.
Would it blow up your world if you had to tell your current boyfriend that a DNA test is needed? Did you know you can do such testing before the baby comes? (At a cost.)
How early was the first ultrasound that gave you a due date?
Also, talk the issue over with your doctor, and say you need to assess when conception was, from the ultrasound only. The doctor should be able to give you an estimated due date (this is a calendar date) and you can use that in a conception calculator to count back.
Have you been to a doctor and gotten an ultrasound yet? Don't worry that you don't know when your period came, it can be misleading to count forward from the last period anyway. What you should find out from your doctor is an estimated due date from the measurements of the embryo and its developmental markers as seen on the ultrasound. If your doc won't give you an ultrasound, find a new doc. Pay cash if you have to. If you get an early ultrasound (like, right now) you might be able to get some trustworthy medical indicator of when the baby was conceived. Don't wait, though. Get it this week. Ultrasounds get a wider and wider margin for error as the pregnancy progresses; by your 12th week there is a +/- 7 days margin for error, and that will not help you if you are trying to see if you got pregnant before March 7.