Need some advice, thanks :)

Hi my ex bf and I when we were still together had unprotected sex where he did go inside me multiple times. I am on Yasmin but during that time i missed taking my pills for sometimes 3 days at a time then would take one and would forget again for 3 days. Its now been over 2 weeks since this. I have stopped taking my bc pills 7 days ago and usually get my period on the 3rd day of stopping. I didnt. I stopped taking them because i have been having weird symptoms and have worried i am pregnant. I have been bloated, had diarrhea, then constipation. My stomach/lower abdomin feels hard. I've been eating tons and always feel hungry, I feel i have gained weight and I get heart burn, and i've never experience heart burn before. I feel tired alot and i have noticed that i get hot flashes alot or will feel warm very easy when i use to always be cold. I am 24 yrs old and just broke up with my bf shortly after this all happened. Today i got heart burn only after eating toast and honey with fruit punch, and i still have it 1 hour later to the point where its almost making me sick.
Do you think these are sure signs of pregnancy or is there more clear signs that i would know? I plan on getting a clear blue test if i do not get my period by this weekend.
Thankyou for your advice!