I have not had a period in six months. On march 10 I had light spotting for two days. I have been having symptoms of pregnancy which include frequent urination, tingley breast, fatigue, and cravings, just feeling sick in the morning, cramps, some foods smell disgusting to me, could I be pregnant, and was that bleeding I experienced implanation bleeding.

Implantation bleeding occurs in the first few weeks of pregnancy - not after 6 months. You should see a doctor or go to planned parenthood to have yourself checked.