Can I still achieve pregnancy?

Last night my boyfriend and I engaged in sexual activity, while he wanted to cum in my mouth, he said that I could take the cum from my mouth and insert it into my vagina, that he wanted to try something different? I was interested in it, so I did, he has no problem cumming inside me, just thought about trying something new, different. Could I still get pregnant if I spit out his cum onto my fingers and inserted it?