I had a premature delivery on Feb 15 ' 18. My bleeding didn't stopped. So took Trapic tablets for three days. Bleeding stopped for 3 days and started bleeding on 13th April like regular periods and stopped in 7 days. Me and my husband had sex on 21st April. Just his pennis was inside vagina for 2 mins and he come to conclusion outside only... Please tell me is there chances of pregnancy?

Please help me . I don't want to get pregnant now.