I am suspecting a pregnancy. I spotted 3 days before my expected period. It never came. I throw up when I smell lasagne, my body hurts so much that I actually cry and try not to move because everything from my head to my toes aches and hurt so bad. Especially my neck, lower back and stomache. I'm getting really bad period-like cramps. But, no period. I took 3 hpt, all negative and went to the clinic for a urine test, also negative. Could I be pregnant, or is there another cause to all of this?