I said no and he kept going

Sooo. Yesterday I had sex with my bf and I reached the O but he didn't. Then we went for round 2 and he came. And I thought it was enough. After an hour or so we started making out and he started to fuck me again. And I always kept saying no and I almost cried and now I don't know what to do. I feel gross and depressed and I can't talk with anyone. Someone please help me and advice me. I'm so confused. Is it considered rape? Should I break up with him??

P.S. he's now saying he's really sorry and I just don't know how to react