Ejaculation

I had unprotected sex the past three days. The first day he pulled out, the second day he fingered his semen inside me, the third day we used a condom during the first and second time he ejaculated both times, the third time we had sex we didn't use any protection (all back to back, no bathroom break) and I know he did precum inside me, he pulled out but his pens did touch my vagina with some semen on it. What's the chance of pregnancy in this case?