Some Advice

Ok, first of all I want to apologize because I know this should be posted in the chit chat forum, but for some reason it won't post it so I will just write it here. Ok, here's my problem~my boyfriend is five years older than me and i'm just 19 so I don't know how to tell my parents(I'm not sure if they will freak out about that.) And I know you guys don't know my parents but I was wondering if you have been in a similar situation or how you think your parents would react. I'm not sure what to do. Thanks for any help.