Pregnant ?

Jala • I

So My period is 2 days late currently and yesterday I ran to the bathroom thinking it was blood but instead it was this thin white milky discharge coming out . What could this be Ive been reading online and everything is saying early sign of pregnancy however I just had sex last Monday . So exactly only a week ago. I’m having cramps and back pains a little nauseous . I think I’m going to wait it out tho but I have a doctors appointments me just incase it is a yeast infection.