Pregnant after a tubal?

The last 2 days where I had my c section feels heavy or almost “full”. I had my tubal 1.5 years ago and the last time I felt like this I was pregnant. I just had my period and it was really light and only 2-3 days. The last few days I have been having a brown mucus like discharge and more than normal. It doesn’t burn or itch when I pee. Am I just being paranoid? Has anyone been through this? Anyone gotten pregnant after a tubal?