Are there modifications for early pregnancy?

I’ve been doing barre3 since 2016. I fell off a couple years ago but came back sometime last year. Going through ivf and didn’t do workouts during stims. I went back after I completed the transfer. I’m at 5 weeks now and was wondering if there are certain modifications to keep in mind.

I mainly do the strength training classes. I spoke to my instructor and she’s aware and has made modifications. She reminds me to hinge more. I know not to twist. There are times I get so scared that I don’t squat down all the way and my body naturally doesn’t want to use my core but that should be okay, right?