Just had dental work, came home went to bathroom and had blood when i wiped. is this do to swallowing blood?

No: by the time you digest blood it is not red anymore, but rather TAR BLACK Most often blood when you wipe is due to irritation or maybe hemorrhoids.

Not likely: When the gum tissue is manipulated during treatment, it will have to heal. The body heals from the inside out so the surface may take a few days to heal. Follow the instruction given by your Dentist so that healing can take place in the fastest period of time.