I'm a 23 year old female and I live by myself. I have recently been kind of permiscuous...

I made plans with "Adam" to go on a date last night... I've been talking to him online and on the phone here and there.... but anyway we went to a movie last night and when we got back we were just talking and some music was playing and then things went from kissing and touching to that responsible talk of where things were going about protection and what not and led to the bedroom where we had sex. It was really my first time since being raped at 13 so it was a little scarry or well nervous but things went well and I guess what I'm wondering is there something wrong with me for doing this? Also my dad called and left a message because I wasn't home to answer the phone and he didn't know where I was and what not. When I told him he gave me the third degree which I think I handled pretty well; I answered some of his questions but I did lie to him when he asked if I was alone here at night. Is it bad that I lied to him? I did it because I didn't feel it was his business and just didn't want him to know every little thing about me or involving me. I do have somewhat of a dilemna, we have an agreement that he pays 100 dollars of my rent and in turn I help him with the family biz once in a while. Does this agreement imply that I need to tell him things even though I don't want to or something?