I had a miscarriage 4/16 I had unprotected sex 5/1 and 5/2 Now my breast have been sore for two weeks I'm cramping having lower back pain and a nasty metal taste in my mouth I've also been constipated and have had headaches I took a pregnancy test Saturday it was negative I'm wondering is it possible for me to be pregnant or am I having hormonal problems from my miscarriage