Starting at the last week of August i had a period, a week and a half later I had another period, then 2 weeks later I had a third period. I didnt go see my gyn because im low on income right now. Its not the middle of October and I still have not got my period since the third period in september. Im not sure what i should do but any ideas what could be causing this? Ive taken 2 prego tests and both have come back negative. I took them a week apart.