how accurate are dating scans

[jade1245]

hi I am 10 weeks pregnant and I am so stressed out this is my second pregnancy I had really bad postnatal depression with my 1st and so worried it's coming back again. so I had a scan on the 2nd Feb which put me at 6 weeks 4-3 days and then I had another on the 22nd Feb which put me at 9 weeks 1 day i need to know how accurate these scans are as I don't remember my LMP date I've tired to rack my brains but I just csnt figure it me n my bf broke up.n I had sex with someone on the 21st of Dec and me n my bf got bk together the next day I had sex with him around Xmas time my doctor says it's fine I would of completely missed it with the other person as by the scan I would of fell pregnant beginning of Jan and sperm can only live up to 3 to 5e days inside you. but I just can't shake this feeling I feel like I'm going insane I've been reading up on it every single day my head feels like it's going to explode I just csnt deal with it anymore someone please help I'm so scared because of what I done n I'm an over thinker I'll go back into a deep depression

How many thread are you going to start on this?

As far as I'm aware they're pretty accurate so you should get a good idea of dates on your 12 weeks scan. Hope that helps

if u must know I was advised to come into this group and start a new thread as where I've written before isn't the right place to talk about it so that's what I've done n now ur sitting here judging me to be quite Frank mumsnet is for advice n support n clearly ur just someone who's too busy sitting at home judging people go look at ur own life before u judge mine yoy no good person

thanks Betty much appreciated xx

Oh dear, I can understand why you are anxious. Are you able to tell BF that you slept with someone else while you were split up? Do I remember from somewhere else that it will be clear who the father is, once the baby is born?
The doctor reassured you, by the sound of it. Is there anyone else you can talk to?

hey yeah I'm actually going out of my head here I can't sleep I csnt even think straight I csnt tell him as he will go crazy. yes my doctor reassured me but I never asked her how accurate scans actually are and I've read online they can be a week out. I haven't got anyone else to talk to as my bf is very controlling n I don't have much friends around so literally this is the only place I can speak about this I just don't know what to do my last two scans the date have only been a day or two different xx

My dating scan was accurate by 1 day. We had IVFso knew for sure the day of conception and they were 1 day out. Pretty close I think. I hope you manage to work this out.

oh wow that's put my mind at ease a little bit I have another scan on the 21st March so if this scan is the same as the others. then it's got to be right I'm just such a worrier 🙊🙊

I don't want to sound flippant, but I think there might be an easier answer to this.
If you are afraid of your BF because he is crazy controlling, then you need to separate from him regardless of the paternity of your baby. Neither you nor your baby need a man like that in your lives. Sorry.