I don't know what to do I got pregnant the end of March lost the baby in April/May my B.D. didn't…

I don't know what to do I got pregnant the end of March lost the baby in April/May my B.D. didn't know I was pregnant cause we had been broken up now he wants to get back together and I keep telling him no but I feel like he's keeps playing on my emotions because he knows I want to try again for another baby