could I be?.......

HI so today while I was trying to buckle my shoe I felt wet like very wet tmi ik so I went to the washroom to put a pad on because I assumed that was my period showing up after three months wrong! there was nothing and not to long after came the af kind of cramps ov been having cramps for almost two months. I took a pt in February and it was negative iv also had backaches and headaches for about three months as well could anyone help me to understand what's happening to me I'm worried