He ejaculated and cum into my mouth and swallowed it, then a minute later i spat on his penis and put it inside of me and had sex, what are the chances of me getting pregnant from 1%-100%?

Some sperms can linger in the mouth even after swallowing and on the penis the way you describe events. So the chances are there that pregnancy may occur, though low. It is not possible to accurately give a figure as percentage due to many variables involved- how much semen in mouth, when on penis and whether it deposited them in vagina. Best is to get tested if you are worried and avoid this.