Here?s my problem. I?m 15 and my boyfriend is 16. 3 weeks ago, we had protected sex, and it was?t the first time. The times before, my period had come every time. 4 days ago, we had protected sex again, but my period was supposed to start 3 days ago and it hasn?t. I haven?t missed or been late for a period in a few years. I?m just scared that i?m somehow pregnant, even though we used protection. The time we had sex 3 weeks ago, I was a couple days before I was supposed to start ovulating. I also just recently, as in last week, had blood work done for mono testing, and I was thinking any blood test would pick up hcg levels but there was nothing about it. Am I pregnant? If you could please help in any way, that would be great.