Last week I thought I was starting my period but it was spotty and brown and light pink and only lasted 2 days plus some cramping but no period help?

Did not ovulate. A nice normal period needs a conversation between brain and ovary. Everything has to be right. Brain turns on ovary process with fsh, ovary makes estrogen and progesterone, little signals back and forth make ovulation, and if no pregnancy, more signals make uterus lining fall off. Could be fluke, but if pattern, could be weight fluctuations, thyroid, early diabetes, or pregnancy etc. Be healthy!