Oh no

My boyfriend and I are sexually active but we refuse to have sex without a condom AND im on birth control. However, I often forget to take my birth control. Regardless we use condoms every time. 2 or 3 weeks ago I was telling my mom about how certain smells have been nauseating me and she immediately goes "Are you pregnant?!". I immediately said no but ever since she asked ive been scared out of my mind. Im supposed to start my period in 5 days so im trying to just wait and see if I get my period but every little thing is making me question what she asked. Ive been highly emotional, incredibly bloated, super hungry but always nauseous, always fatigued, my boobs have been sore, and i go pee a lot. Ugh im only 17, im not ready to have a baby. Does anyone have any advice? ):