Preggo....keep it or delete it?

Guys, I'm pregnant for my ex. So me and this guy have been dating on and off for about 8yrs now. He was my best friend and we've known each other since we were 13.Tuko kwa Ile toxic cycle ya breaking up and getting back together. Our rshp has had a lot of toxicity and at some point it had DV. 2023/2024was the most difficult year of my life with a lot of loss, job, family, assets etc and this guy tried to be there for me. Shida ni he can never keep his word. One minute he wants stability and marriage the next hataki rshp yet he'll be there sampling the goods.I supported him with bills for multiple months last year while I was out of town but he doesn't appreciate any of it.He will speak to multiple women at a time and say it's not cheating.I feel disrespected and like hanitaki Tu but yet he keeps coming back. I also hate that whenever we argue he goes to tell people and he clearly lies about his whereabouts to his family whenever he's with me. I feel like I'm being kept a secret. I don't feel covered or protected. I've really been hoping he gives me the stability I crave coz I'm already someone's baby mother. I really don't want to start being pro choice but I also don't want to be a baby mother second time around. What do I do?