what is the probability of me being pregnant?

i started the birth control pill tricyclin 15 days ago and me and my boyfriend have unprotected sex a lot and did a few times when i first started the pill. he does go in me almost every time. but i have been noticing some things the past week and a halfish and i feel like i might be pregnant. well heres my syptoms..

-headaches and back aches(i have back problems anyway though so idk)

-nausea sometimes without vomiting but almost

-had heart burn like twice

-painful cramps that started about 2 weeks ago(period isnt for another week)

-i feel like i have bad gas constantly

-more discharge than usual(clearish lookin no smell)

-peeing more than usual(like waking up about 3 or 4 times a night like im about to pee the bed)

-complete exhaustion constantly, i sleep in till like noon and go to work and wanna pass out)

-breasts arent really that sore but nipples are super sensitive.

-loss of appetite but eating anyway cause if i am i want a healthy baby.

-idk if its changed at all but i feel like i can smell everything so clearly and usually i cant.

- i carried in a heavy bag from the car and needed to take a break.

but i took a pregnancy test a week ago with a negative but i feel like it might have been to early. can i be? or is it the pill? cause when i started a different birth control i felt nothing. now im feeling so much. could it just be super early period signs?

I would say you have a 50% chance of being a mom! When you take birth control you have to take it for a month or two before it completely prevents pregnancy. Alot of your symptoms are pregnancy symptoms, but then again if you think your prego your mind can make your body have symptoms, like feeling sick or headaches, loss of appetite, sensitive nipples, etc.. it could be in your head or it could be real. When you get pregnant your nipples should darken and one thing i noticed when i first got pregnant was my mood change, i would cry over everything and i was happy one minute then crying the next. I never started peeing alot until i was 6 months, now that im 8 months im wakeing up 4-5 times at night to pee, also being prego can cause UTi's and kidney infections so i would get that checked out especially if you feel uncomfortable or burning, it sucks when ur pregnant and u get a uti. Your best bet is to get to the store and get a test, or you can wait it out and see what happens with ur period. But the more you think your prego the more you will feel like u are. Good luck hun!!