Baby daddy troubles

So this is a bit long winded but ill do my best to make it as short as possible.

So my first child was born in 2016, dad fully involved from conception to birth and onwards despite us not being together. Fast forward to quite recently & i was aware he had a new girlfriend. Myself and baby daddy were recently at a party together where he confided in me that him and the girlfriend had broken up a while back. Long story short we had unprotected sex that night & ive just found out im pregnant again. When ive told him his reaction was instantly "you need to have an abortion", i explained i wasnt prepared to do that and then told me him and the girlfriend have got back together (im now questioning if they were ever really broken up to begin with?). Since then ive had horrible messages from him telling me that "my pregnancy has f*** all to do with him and such & im feeling so guilty and low about the whole situation. I feel totally alone in this pregnancy at what should be a happy time im filled with dread and anxiety at the thought of doing this alone and i cant help but worry about the future. Whats going to happen when baby is born? How can a father possibly be invovled with one child and not the other?

Please no judgemental comments. Im just looking for a safe place to vent x