Hair question

I have naturally straight hair and it is long. When I wear it down it is just a wall of hair and is very boring. Because it’s so long doing anything aside from washing and brushing is a chore. So I get it permed with extra large rollers so it will always have a wave to it, at least. So it’s not just a wall of hair or always in a bun.

I’ve not consulted my doctor yet, but my stylist says that I can have a perm in the second trimester. Which is good news as I’m due for one and nearing the end of the first trimester.

Does anyone know if this is sound advice or should I just wait until o give birth?