Pregnant?

Hey everyone 😊 so I take birth control pills & I've been with my boyfriend for a year now, no condoms & he cums inside of me about half of the time. Haven't gotten pregnant yet. The birth control pills make my cycles extremely regular & I feel myself ovulating and boobs get sore literally half way through my cycle. This time I didn't get sore boobs until a week before my period's supposed to start, I had pink discharge on toilet paper & if I stuck a tampon or tissue In my vagina it would be pink for like a day & slight cramps (implantation?). Before I had the discharge I felt irregularly hot. When we have sex I'm ridiculously dry (when I was at work the dryness made me feel itchy. Not yeast infection itchy but itchy enough to start trying to wiggle it out🙄) & my vagina feels so tight & it's hard for him to get in even with lube or spit. & when he does get In it feels like there isn't enough room. & when we did have sex I got really fatigued. My period is supposed to be in 6 days. Could I be pregnant? Or all in my head?