I am 19 and this would be the 3rd month that I missed. I was a virgin and had protected sex. Right after we were don't I had slight bleeding but people tell me that's normal since it was my 1st. I was wondering id anyone could help me. I have taken several pregnancy tests and there all negative and I had protective sex. Thank you

It's likely because you are worrying about missing periods. The female body is notorious for playing tricks on you, just when it will freak you out most. Protected sex plus several negative pregnancy tests says you are not pregnant.

Or there is an infection of some sort, or the worry, but again you could be pregnant.

I know you realise that no birth control method is 100 percent. And you did not say what protection you used, even using condoms and birth control pills (BOTH) you can still get pregnant

I am no longer on birth control. I only used a condom. Yes I have taken several pregnancy tests between these times and there all negative. Ive never wanted my period to start sooo bad! I just want it to happen so I don't keep worrying. How would I know if its an infection?

Ask a doctor. Don't worry, doctors get asked this a dozen times a day, they won't think anything of it.

Yes, I would at this point have it checked by a doctor, since it could be several issues, and all of which would be best seen by a doctor