@AwarkwardPosition
drspouse
That what I mean I want my child to know their half sister and have a relationship with other family members too.
Sorry but while any relationship with the half sister and the father's other family members might be a nice idea, it is absolutely not your decision.
You have no right to force your child into the half sister's life nor the lives of his family members. That is up to the father, his partner and his own family, not you.
You get to decide who has access for your own friends and family only. Having a child with this man only allows you to have some expectations of him, not everyone he already had a relationship with prior.
That's overreaching on your part.
I wouldn't try and push it or you're going to come off looking bad. You don't want to have people view you as the batshit pushy ex and have everyone close ranks around him in support.
The bloke may be an utter shit, or not, there's not a lot of detail on that front, but it doesn't mean you get to interfere with his life away from you because you have a baby with his DNA contribution.
This may all suck for you but that's what you have chosen when you decided to carry on a pregnancy with someone who is not your partner but someone else's. So, sorry, but you now have to live with the difficult consequences of that choice. This is the truth you must surely have known as it's not exactly a secret that men get to pay (sometimes, if you're lucky) to walk away. It's obviously shitty to deal with for you but it's not unusual. As unfair as it seems, mothers end up in this position all the time and everyone knows about it, especially if they are an affair partner, rebound girlfriend or something similar. It's always inadvisable to have a baby with someone who has so much baggage and does not want to be with you. As you don't appear to see termination as an option, you are basically screwed but cannot say you didn't see it coming.
Good luck. You're going to need it.