My boyfriend and I had unprotected sex and did the pull out method and he said he did bust inside of me, but when I felt down the I saw his but he said he didn't inside of me. The next morning I felt cramp and then saw blood! But the crampping is not that bad, and the next morning the same thing is happing! May I be pregnant cause I have been doing some research and some woman's had the same experience as I did what could this mean?