So I just received a lovely prescription for antibiotics to treat the double-whammy of sinusitis and bronchitis that's making finals week ever so fun. Because my brain was pretty much fried, I forgot to ask about birth control and such, and there's a little sticker on the back that says "some medications may cause hormonal birth control to work less well."
I have a Mirena IUD, and I'm on my period. Should I use an extra barrier method in the extremely unlikely case that I have enough energy to get laid this week, or am I probably fine?