How to smell & taste good down there? (In a healthy way(

I'm going to my bfs soon and am rlly nervous bc we were discussing oral stuff (im completely fine with doing it just nervous) and on that day it's the last day of my cycle according to my app which makes me MORE nervous, he says he doesn't care even if there's blood or whatever i have a fine diet, I eat cauliflower a lot & nuts & get my water intake, I'm just NERVOUSUS that I'll smell or taste weird, idk how to describe my "smell" exactly, it js seems to not smell the best, I'm just nervous girlys please help !