So on my last period I was 3 days late and the day before it came I had sex but it came and lasted its 5 usual days. Recently I have been feel very nauseas and throwing up. Im always bloated and my pelvis area and stomach poke out and are firm and I don't try to push it out or anything. I have 10 days until my next period. But I'm really concerned. I rarely get stomach sickness and the only time my stomach get big is after a big mean (im very petite and skinny). I also have a whitish discharge it doesn't smell and my vagina isn't irritated I went to my dr and she said it was excess bacteria and eat a lot of yogurt but it hasn't disappeared. Any advice would be wonderful cause I've never had a late period or felt like this before. Any help I appreciate greatly.

Your stomach can not and would not be sticking out before you even miss a period. There are no signs at this point. You had your last period, so you are not pregnant, or very rare chance. But if doctor doing blood test says no, then it is no. You need to calm down, wait till period is due. It is common, to be a few days late sometimes, it is more surprising if you are not late at times. All this worry and stress is just going to make it worst, and cause period to be late