Okay Ladies. I need some advise. I'm on the implant so I don't have a period. But I can tell when it's time because of the symptoms I have without the bleeding. But I've been having some major pain in my stomach , it's kinda like cramps, but I know it's not cramps. What could it be? Plus the last time I had sex was on Sunday and that's when all the pain in my lower stomach started.