Bfp after a period?

My period was late for 2 days. Tested BFN on the day af was due. next day, it came starting from pink to normal red period flow. I had alot of pregnancy symptoms before af was here. I did not have cramps at all during af and did not have a big appetite which is weird.
For the past few days, I feel nausea and loss of appetite. Is it possible that I am still pregnant?