First off, I use condoms and birth control when I have sex. I have taken 2 tests, both negative. And had 2 regular periods. But I know tests can show negative, and you can still get your period while pregnant. It has been about a month and 3 weeks to two months since I had sex. I have been having nausea throughout the day for over a month now. I have had no other signs except for my belly getting bigger recently. That might just be me gaining weight since I have been boredom snacking for about the past 2 weeks. I can't go to the doctor to get a blood test done since I cant risk my mom finding out. So is it possible that I could still be pregnant?