SEX duh

Okay so, I'm only 17 and all my life I've been taught to wait as long as I can and wait til marriage and yadda yadda you know the drill. Well I'm a senior this year and I've been thinking about it ALOT (as all teens do) and I honestly do think I'm ready for it, like if it happened with the person that I'm wanting it to happen with, I would be fine with it. He is also a virgin. We haven't talked about it but we've hinted. And like I really would with him but then I keep thinking about my parents and if they found out.. And I saw this thing one time and it was like you shouldn't have sex if..: and one of the reasons was if your parents would be disappointed. And they definitely would be. But oh well. Shit happens lol. I just want an opinion, any regrets? Suggestions? Please help. Lol