My boyfriend an I tried sex without a condom for like 10 seconds then used a condom what are the chances of you getting pregannt we tried it again to a week later but for a longer time then used prot?

Even if he did not ejaculate he may have emitted precum, which may have semsn in it.

This is a dangeorus game you are playing, if you do not want to get pregnant then you should not repeat any more unprotected sex.