I have irregular periods, But for the past 4 months it was consistent. I have sex weekly with my boyfriend for this month. But this month I havent gotten my period (it was supposed to be a week ago if it got regular) and today I have a light pink discharge, Usually my periods are heavy starting out, but I haven t changed my tampon and it is like barely coming out. I feel like i need to poop but i cant. My lower tummy hurts all around to my back and butt. I ve been dizzy and hungry, but i feel sick today, Is this just my period or am I pregnant? Sorry I feel stupid.