Not posted on this for quite a long time, need somewhere to vent and sorry this is quite long.
My ex split up with me around 8 months ago because he said he loved me but wasn't in love with me anymore. We had been together for almost 10 years and have a DC together. Since we split up he has still been around to see my DC, we've been on holiday together and still sleeping together. Anyway, recently I realised my period was late and it turns out I'm pregnant (I've been unable to get my usual contraception because of covid and he knows this) sometimes using condoms or he had been withdrawing, I know this is incredibly stupid of me but I couldn't help myself sleeping with him because I still loved him, had feelings and had hope we could sort things out since he was still wanting to spend time/being intimate with me. Since I've found out I've had a long think about what I wanted to do and I've decided to keep the baby, this is my child's sibling and I feel the love for this baby already. I didn't expect him to be happy about this baby but didn't expect him to quite react the way he has either. He said I'm selfish for wanting to keep this baby, bringing a baby into a broken home, he thinks it's selfish on all parties including my DC I already have, his family think the same and that it's only a seed just now. He doesn't want to talk to me anymore, I've to take someone to the scan that actually cares and phone him when I'm in labour. AIBU? I feel totally shocked, hurt and a bit numb tbh 
how can someone treat someone like this and speak about their unborn child like this? It's amazing how something can make you totally change your mind about someone you thought you loved.