Hes my stepfather and he wants to fuck me

Dear Diary, Before my stepmother she told me several times to find my stepfather if anything ever happened to her. A few weeks after she I had no choice but to seek him out. When I did he welcomed me into his home for the night. We talked a bit and then he showed me to my room. I couldn't rest well since stepmom so late that night I went to my stepfather's room to get some comfort. He let me climb in bed with him and we cuddled up tightly. Strangely enough, his touch began to turn me on and I could tell he was turned on too. Needless to say, we wound up having sex in his bed and we both relieved some tension. Unfortunately, he came inside me and I'm not on the pill. At least if I did get pregnant we're not. Xo Stefania