Hi and thanks for the query,
I would start with your last worry. The bleeding you experienced after stopping the pill is very normal. This is called withdrawal bleeding, due to an abrupt change in circulating hormones in the body that lead to these bleeding. It is abrupt and does not give time for the body to adjust itself appropriately.
like symptoms you have been experiencing are certainly not due to pregnancy because of the evidence of withdrawal bleeding and regularity of the cycle. You might have simply experienced signs of ovulation. You should observe over a few days to see whether symptoms are going to ameliorate of aggravate.
In case there is anything, you might then need to see your gynecologist for reevaluation.
Thanks and best regards,