I don't really have to deal with the monthly stuff (I'm on the depo shot,) but there have been slips and falls from time to time.
IFing helps. If you're good with that, go for it. Otherwise, I just keep it minimal with lean meat and raw/steamed veggies until my body adjusts back. I've learned nothing sets me straight better than going raw for a couple meals. (Raw food limits food choices, thus making me behave- lol.)