Thanks everyone for suggestions.

I told my boyfriend that Im virgin and he was so happy he will be first man for me and I hate it! I regret I told him Im virgin but I cant take it back. I hate that he thinks that I belong to him and I said if he will think that way I will sleep with another men too just not to belong to him.
I told him I will take pain killers. He wasnt happy about it but he has no choice.
Now I dont know if I want to sleep with him.
Please tell me that if I slept with him it doesnt mean that I belong to him.
He said-great that you have no experience I like it. So I started to tell him about making love with other men without sex at the end.
I know Im weird.