missing period & bad birth control?!

Okay, I haven’t had my period in about 3-4 months.

A little background, I was very active all thru high school & college but I always got it on time. But now I’m not active at all, and I don’t get it. Lowkey bless.... But it’s really scary because I’m more sexually active now,

and I want it to be regular, also I’m epileptic so birth control is very hard to find. Any tips or experiences to help ya girl out?