So I have been dating my boyfriend for 4 months. I am 18. We have been having unprotected sex for 2 months. I am not on birth control. I know I'm dumb but I had unprotected sex with my ex for a year and never got pregnant. I have been stressed lately cause me and my boyfriend have been fighting. My last period was may 17th. And now it's July 3rd and still no period. I usually get my period every 30-35 days. I am stressed a lot but I never usually get a late period like this when I am stressed. I took 4 pregnancy tests and all were negative but could I still be pregnant? I made an appointment with the doctor on Monday. I am just worried. Usually before I get my period my nipples are sore a week before my period . My breasts not my nipples have been sore on and off for 2 weeks. They feel heavy and swollen. I just don't know what's wrong with me. I just wish I would get my period so I would know.

You well could be pregnant, you have just been lucky, very lucky, if you never got pregnant so far. The odds are not in your favor.

Stress can cause it, but so can pregnancy.

Since you can not test till 2 weeks after a miss period it is just time to start testing, and some women will get false results till 4 or 5 week late.

So yes the doctor is best way to test with a blood test. But yes very likely pregnant, if not, please start using at least 2 methods if you don't want to be a mother, with a father who is gone.