I need help

I need some advice

Background information about myself I was diagnosed with endometriosis back in 2018 during my emergency c section with my son and I’m normally on my period the bleeding is super heavy and the pain is next level so my question is what the chances of me being pregnant if I ovulating between 11th February to the 20th February then I had sex on the 21st February and for the last few days I’ve been experiencing painless bleeding (it started of as spotting but now light bleeding)

Any advice or suggestions and stories would be appreciated because I’m so confused