He wants it, not sure that I do

So my boyfriend and I have been together for about 3 years. We are both in college, and both virgins. He is ready to have sex and I'm just not completely sure yet, however he doesn't try to force/pressure me. Also, he has taken a huge interest in blow jobs and wants me to try it so bad. I have kinda tried it, but never want to finish it because I just think it's gross... Anyone else feel this way or have any thoughts? Thanks!