If a guy touches some thing after touching himself than you masturbate with it can you get pregnant
sperm lives for about 4 hours so it would have to be have to be very soon after he touched it, but then again people are only guessing.. if you want to get pregnant then get a guys condom, turn it inside out, and push it into yourself with a banana.
that other answer is good by ichibanarky and I just want to say beware of diseases! That seems unsanitary!
If this item came into contact with his semen and you used it shortly after, then yes, it's possible.
As long as the semen hasn't dried up, there is a chance.