Need advise on baby dad

We werent together as i feel preg by accident. Im happy to be having another child and he seems fine with it which is all good...

Ive got feelings for him though, he says we are never going to get together... & tells me to grow up and to go away and that im mental because sometimes i ask if his been with other girls..... anyway we had an arguement on whatsapp today & he starts sending me pics of him last night at a hotel with a girl & also pics of other girls

Its really got to me & i cant stop crying the thing is we slept together last week & i jus feel like im never going to be good enough for him, he says he can do what he wants and that one day he is going have more kids and be with someone.... im also scared incase he gets someone else pregnant.. he isnt the father of my 1st but is with this one.

I feel like i want him and cant handle the fact he gets with other girls

Any suggestions what to do?