Normal PMS Symptoms Bloating, Moody, Increased Appetite, No Weight Change, Cramps, Spotting. Can I Be Pregnant ?

Question : I am a 25 year old healthy female. In the month of Feb. I was somewhere between 5-8 days late for my period. I also had all and I do mean all the signs of pregnancy. Nausea, appetite, headaches, even breaking out in hives, weight gain (jumped fr/ 138-145) with no change in diet, mood swings, sore nipples, extreme bloating, back pain, shoulder pain, smells irritating me (I no longer could stand the smell of my perfume or urine . If there was a syptom I had it. I took a pregnancy test every day I was late and it came back negative. Then I got my period it lasted 7 days (usually last 5 @ most) was very heavy with a lot of clotting. So much so if it didnt stop when it did I would of went to the doctor b/c I thought i was having a miscarriage but the test was negative. After that all my symptons started to subside. The smell, hunger, mood, everything went back to normal except that I was still breaking out in hives (started taking benadryl then allegra for that). I did not take a test after that. Then this month I started my period but it was very light and only lasted 3 days. Red in the beginning then pink and brown towards the end in color. Before this Ithought i was experiencing normal PMS syptoms bloating, moody, slight increase in appetite no change in weight but couldnt lose the weight either (I had been dieting and strictly watching what i ate, no diet sodas, lean meats fish and chicken nothing fried and working out around 10hrs a week for 1 1/2 weeks with no change only around 2lbs. Did have a few slip ups cake cookies etc.). Three days passed and then I started spotting very lightly pinkish brownish. This would of been the 7th day of my period. two days prior i was in a minor car accident but didnt go to the hospital I was fine afterwards and not even sore the next day. For some reason something told me to take a pregnancy test. When I took it it was positive. Then I took 4 more all the same. That was just yesterday. I am still slightly spotting. Mild cramps but the spotting is getting lighter. Could I be pregnant? Could last month have been a miscarriage and the positive testing is from the left over hormones? I definitely dont feel pregnant like I did last month. I'm scheduling a doctors visit but I'm worried and trying to figure out what to expect. Thanks for your help.