how accurate are ultrasounds?

[ally_25]

As of right now I am 18 weeks pregnant. My Edd is 9/22/16 I'm trying to figure out who the father is.. please no judging. I was in a 10 year relationship, I kept having problems with him. We just couldn't get along anymore we both decided to break up. We didn't contact each other to see if we can move on, he started seeing other woman and I ended up hooking up with my ex one night 12/4/15. He says he didn't *** inside me but to be honest I don't remember. I wasn't drunk or on drugs. I was completely sober. I felt like it was so wrong.. I never contacted him again. As soon as I got home I took a shower I cleaned myself really good. I know that doesn't wash off anything but in my eyes I felt like I did. But anyways the following day 12/5/15 I started to spot. I thought it was my menstrual coming.. lasted for about 2 days. Its been a few months now so I don't remember much. But anyways I got back with the guy I was with for 10 years. He called me and said things weren't working out for him, I felt the same. So we Gave it another try. I told him I hooked up with my ex just to be honest with him, told him we didn't use a condom. And he was okay with that we never talked about it again. On Feb 12 2016 I found out I was 8 weeks pregnant through ultrasound, I told the doctor I didn't know my lmp I've always been irregular. So she thinks I had my period on 12/17/15. I don't remember getting it.. but as of right now from what I'm saying who could be the father? I kept having unprotected sex with my current bf. I'm still with him now.. I'm just scared that my ex could be the father.

[AnnieBrooke]

Well, sure.  Have you used a conception calculator to look up when the baby would be due if you *did* get pregnant on December 4?  It would be a month earlier.  You're really talking about a big gap of time here.  During pregnancy, sometimes a woman will fixate on something that is not genuinely a problem and blow it up in her mind, we certainly see it sometimes in this forum.  Try to let the worries go.

[ally_25]

To be honest.. no I haven't but your right it's a big gap. Thank you so much! I feel this weight off my shoulder now (:

[AnnieBrooke]

Your December 4 sex was far too early.  Did you get back with your ex by January 1?

[ally_25]

Yes I got back with the guy I was with for 10 years, I'm currently still with him. You think it's all in my head? Lol