I have been bloated in my lower abdomen (around where my undies sit under my stomach) and have had light cramps. I had about 3-4 days of off an on spotting (pinkish brown) My boyfriend and I have been trying for a couple months (around Thanksgiving was when we started). My boobs feel larger than usual, my nipples are almost always hard. Lower back pain, frequent urination, tired all the time ( I never feel like I am getting enough sleep). Could I be pregnant? I have taken pregnancy tests but they all came back negative. I really need help