Turn off the water heater (big power draw) and keep the other electrical items to a minimum. Avoid anything that heats as it is typically a large draw (microwave, toaster, hot plate, etc...) The fridge is borderline but probably not a huge issue. Check the rated amperage but I doubt it's more than 1 or 2 amps when running.
If it starts without the circuit breaker poping, it should be fine. Maybe check the cord occasionally to ensure it isn't getting warm but assuming the cord/outlet aren't old and corroded, it should be fine.
