So I want to have sex

So I've been dating my boyfriend for 4 months and we've constantly hooked up when we can and the only thing we haven't done is had sex. We both want to and we've talked about it. The only problem is that we're 17 and don't get much alone time. The most we get is in his basement with one of his parents asking a question every 45 minutes. We both know consequences and are on the same level of having protected sex and knowing when my chances of getting pregnant are higher or lower. So my question is: is it wrong to want to have sex even though I'm 17? And how would I go about getting enough alone time?