Should I tell my family?? *update for all the commentators*

Liz

Well me and my boyfriend have been together almost two years. I'm 15 and he's been there for me for everything. I love him more than anything but there's one HUGE problem. He's like my 6th or 7th cousin ( we Aren't like 100% sure) but we are both scared to tell anyone. I've tried to talk to him about telling my mom or at least my dad. But he's scared and then it scares me. We had sex over Valentine's Day weekend and almost got caught by my great aunt. But he hid till she fell asleep. Lol. But we just don't want another scare like that. We are so happy together. And we don't go a day with out texting or calling. So I was wondering is it wrong?? Should we just stop and put our feelings to the side and pretend it never happened?? Or should we take a huge leap of faith and tell our parents?? I really would love you some feedback. Positive and negative. Positive would be great though.

*I told my mom and she wasn't real thrilled so we have decided to stay together but to lay low and if it lasts til I'm 18 (cause I'm a bit younger than him) we are going to live together a year then see about marriage.