I'm about a month returned from 3 months travelling in the U.S. I'm 26 and a British national.

Whilst I was there I spent 3 weeks in the Madison WI area with friends. At that time I got close to one of their friends and I just found out I'm pregnant. I have PCOS and have been told that it's highly unlikely for me to conceive naturally when I was 19, I'd come to terms with this and thought when the time was right I'd look at other options. Well now I'm pregnant and I know that this could be my only chance to have a biological child so I'm keeping it.

Right now the father doesn't know. I haven't been in contact since I returned to the UK and I don't know what to do. He's definitely the father. I'm not interested in pursuing a romantic relationship with him.

Because I have no experience with the laws in the US and laws in general around co-parenting, let alone co-parenting across the world I'd love a starting point.

I'm not eligible to move to the US. I have no interest in moving to the US. I'd like the child raised in the UK primarily for education reasons. I don't know how to establish paternity between the two countries. What's going to happen with custody? Will my child be eligible for dual citizenship? Child support? Will I be screwing them out of a loving relationship with both halves of their family tree?

Basically I'm in a mess. This is 100% not the way I expected to have a child, and the whole situation surrounding it is making my mind go a million miles an hour. Any advice or even a jumping off point would be a huge help.

Edit because I'm seeing this come up in the comments a lot. I am going to tell him. I would love for him to be involved. I wouldn't be so cruel to him or our child to keep him away. I didn't realise this was unclear in the post but in case it was here it is.