Okay. Im 4 days before af comes. I'm cramping and my breast are hurting to the point I can't wear a bra. My cm has an odd smell and it's clear. My back hurts all the time and I'm super sleepy. I dont know how many dpo I am. But I've took pregnancy test and they have came back negative. I think I'm testing to early. But from the symptoms does anyone think I have a chance of being pregnant ?