Has anyone taken the oral progesterone while pregnant? I started taking it when my OB prescribed it to me last Wednesday and just had sex for the first time since starting it and started spotting, was a little pinkish/redish. Not a lot either. They put me on it to thicken my uterus because I had a problem with that my last pregnant and miscarried. I'm trying not to stress, and but need some positive stories :)