I'd get it done now, but I'd get a more mild one and/or leave it on for less time than usual.

I would wait a few months. Your hormones are still raging post pregnancy and that can make your scalp more sensitive to treatments. You'll also likely be shedding for the next couple months.

I'm 8 weeks PP and need to get my hair relaxed. I didn't get it done the entire pregnancy and it was manageable. Now that my hair is starting it's PP shed, it is very unruly with knots. Should I wait a few months more to minimize damage, or will getting it done now be better in helping me not rip out my hair while brushing?