Metronidazole pills and unprotected sex

I am taking Metronidazole pills because of my discharge it's super watery and clear and drips through my panties and pants any random time my np says it's a bacteria problem so it's no STI/STD but anyways I had to take the pills for 7days my 7 days are up and I wanna know if I can have unprotected sex tomorrow? or do I have to wait?