but I just know my conscience wouldn't allow me to abort a baby I just couldnt bare it.
This is absolutely fine! Please know there is no right or wrong choice here. Each woman’s choice is specific and individual to her. You make the right choice for you which may not be the same as what is the right choice for someone else.
He has already stated he will still be in the delivery room
He has no right at all. Even if you were married he would have no right to be there. You decide who you want with you, and who definitely isn’t allowed in, you tell the midwives and they don’t let anyone in who you don’t want. Please be assured they will protect you in this matter.
he has told me he wont agree to the forenames I have selected and that we have to agree on ones he approves of.
He is wrong. You can register the baby alone, you don’t need his approval on any of the names you chose. Don’t even tell him when you are registering the baby.
Not placing him on the birth certificate is something I would consider if his behaviour continued or got worse?
That’s your choice. From my perspective I can predict exactly how his behaviour will go. I’m sure there are other MNers who recognise his behaviours and tell you where it ends up.
Ultimately wouldn't it result in court action to get a paternity test and leave me looking unreasonable in the eyes of the courts?
It won’t make you look unreasonable. The courts deal with this sort of thing all the time. For them it’s just an application for PR. You are ten weeks pregnant. You have 30 (ish) to go until the baby is born and then another 6 before you have to register the baby. You don’t need to make the decision now. You get to spend the next 7 months observing his behaviour and how he treats you and then can make your decision. It’s entirely possible he will have walked away from you and the baby before it is born and you’ll never need to get to a court. Or it’s possible he just won’t bother taking it to court even if he is involved with the baby.
My advice to you for now would be to stop engaging with him. His contact/behaviour is causing you stress and you don’t need that whilst pregnant. There is no reason for you to be in contact until the baby is born. (If you even want him to know when that happens) he has no right to attend any of your medical appointments. It’s up to you whether you keep him informed of how scans go etc. But other than that I wouldn’t be contacting him. Protect yourself.