How do I get my exboyfriend back that I have been with for a year and a half, had a baby by, and he is seeing someone else?

You can't he has moved on and you have not. Why are you even considering breaking up his family?

No I am not breaking up this family I am the one that just had his baby and he had been with someone else and didn't tell me he was until4 days afta I gave birth if anything she is the one that has broken up. I am his baby momma!! I just had a week ago. I think you misunderstood!

You can't he has moved on and you have not. Why are you even considering breaking up his family?
I had his baby a week ago how am I breaking up his family when I'm the momma in the family?

He doesn't want a relationship, so if your in the States, get child support through the court, and lose the loser. Get a healthy, happy life for you, and your baby.

You don't get someone back... it isn't a race you win... unfortunately some people think you can do a,b,c and "get" the person again... life doesn't work like that, baby or not.

Why did the relationship break up? What was the problem? Why do you think that problem is fixed? Why would you want him back?