Periods 2 weeks late, 3 negative tests and I don't know if I could be pregnant or not. Please someone give me some information. I'm 18. My boyfriend and I had sex 3-4 times always with protection. Help.

There is always a risk of pregnancy. No birth control is 100%.

If you continue to test negative you may want to wait another week or two and test again or make an appointment to see your Doctor.