Me and my boyfriend

Okay I don't know how to say this . but here it goes . I met my boyfriend when I was 14 and I'm 17 now. So we've been dating for almost 4 years and people always expect we've had sex, and I haven't not because I don't want to but because we legit can't get space away from his parents, and I'm nervous. And I know sex isn't everything in a relationship but I mean its been 4 years and I know he wants to...and idk what to di., I don't want to lose him and I want him to know I love him. I worry were going to drift apart...