Safe days??

So I have a 32 day cycle and I am usually on my period for 5 days. The day after my period ended (day 6 of my cycle ) I had unprotected sex with my boyfriend and we used the withdrawal method. And yes I know unprotected sex can result in pregnancy but I want to know what are the chances of me getting pregnant since I do not ovulate until day 18-22? Please help my anxiety is through the roof!