Yes you can eat hot dogs when you're pregnant.
Hot dogs are safe to eat during pregnancy as long as you heat the hot dog up to a temperature of at least 160 F.
You can microwave the hot dog or boil the hot dog to heat the hot dog up to kill off any potential bacteria that could harm the baby or harm your pregnancy.
When I ate hot dogs while pregnant I would boil the hot dogs because the boiling of the water gets it hotter than it has to be so that there's no risk from bacteria.
The bacteria Listeria is killed off when you heat the hot dog or other meats to 160 F or above and then you'll be okay.
Avoid eating the hot dogs straight from the packages without heating them up because although hots dogs are already cooked it can still contain the Listeria that can happen during packaging.