ve been through a
miscarriage at week 12 of my pregnancy
last May, and it all happened in one day. From spotting, to bleeding more heavily like a period, to an ultrasound, to excruciating pain (physically and emotionally). One day I was pregnant, the next I wasn't.
My doctor said it had nothing to do with having sex, although now that I'm pregnant again I've had some scared when I spot a couple days after sex.
My advice to you is to not worry about it until you know. Believe me!