I haven't had my period in like three and a half months. I have taken four pregnancy test and they've all said negative. I don't want to go to the doctor because I don't have health insurance. My boyfriend always uses condoms and he always pulls out even with a condom on. He's is the most careful partner I've ever had so I really don't think its pregnancy. I'm starting to feel like a man though since I haven't had a period in so long...

The dr is the only way to find out for sure what's going on. All we can do is speculate and guess, which doesn't help you any if its something serious that needs medical attention. Have you tried planned parenthood or looking to see if there's any low cost clinics in your area? They should be able to help you even without insurance. Or, if you're still in school, you can check to see if your school has a clinic. They likely do.

Nope not in school anymore but this did happen before in 08 sept-nov and the doc said it was because I switched birth control.

Did you recently switch birth control again? And what about planned parenthood or looking for other lower costs clinics? There's so many things that can cause your period to stop or become irregular, some of them are easy fixes, some of them are more serious and you really do need a dr for.