confused

hey! so i am suppose to start my period today and i think i did? it’s light light pink but not enough to appear on the pad. does this mean my blood flow has decreased compared to my other periods? or is it that i’m pregnant? or is it that i have implantation bleeding? My period times has changed in the fact that i would get it at 12pm, last month i got it at 6pm and this month i got it at 3pm.

i have very bad cramps as well.

also note: i am on birth control but my boyfriend has came inside of me this month

update: i just went to the bathroom and peed and this big clot just came out. i think i’m good