If im reading this right, he touched the cum with his hand, and then his hand touched your vagina correct?
If thats the case, and you have been taking your pill every night at the same time, I really wouldnt worry. I think you're looking way to much into it, and making yourself nervous
if you really want to be sure, wait for your period. If the period doesnt come, wait a few days later and then take a test.
Good luck, and give your opinion on my topic right below this one. Thanks