i took a pregnancy test and it is positive. i went to the doctor because i have been spotting and they did an trans-vaginal but they said there is nothing in my uterus or my tubes. the doctor said it might be too early to tell because i do not really know last day of my menstrual cycle because of the spotting. she told me to take medroxy progesterone. is that gonna affect my baby if im really pregnant? i already took one