fuck being a girl confuses me

im super confused! at the beginning of the month i took a plan b, i didn't want anymore slip ups so i started the pill but i started it so my period would come a week later than glow predicted, ive been shaky getting back on the pill but i've used condoms all of the other times i had sex. the weird part is mainly that for the last 3ish days i've had all my usual petiod symptoms?! LIGHT cramps, acne, moods, cravings & sex drive increase & even breast tenderness. i was supposed to start my period tuesday(12/6) according to my birth control, but nothing today... i need any level of feed back tbh