I have had 2 periods in three weeks. My first one was very abnormal, two weeks early, heavy, clotty, dark, and long (6 days when mine are usually 3-4 and I am super light to where I just need a liner). Then my second one was a week later and it was normal. I called my doctor and she said it could have been a miscarriage but I was out of town. I am still very nauseous and have other symptoms of pregnancy but I took a home test and it said it was negative. I would be 4-6 weeks. Could I be pregnant?