Chance at pregnancy?

**lots of TMI**

Last night my boyfriend and I had unprotected anal sex doggy style and he finished inside of me. When he pulled out, I could feel his semen leak out and get on the outside of my vagina. I also scooped up some of his semen with my finger and inserted it inside of me vaginally (he has a fetish for this) and today I can't stop thinking about It. I'm not on any BC and my period ended a few days ago. What are the odds of this actually resulting in pregnancy? Thanks in advance!!