I'm 20 weeks (with identical twins) and I do spin class 2x/week and a total body boot camp 2x/week.

Was there a point at which you stopped any plank work?

I've cut out almost all my ab routine (get plenty of obliques and core just biking and with the weights) but I'm still doing some planks, forearm planks, and side planks.

I'm mostly just continuing to do what feels good and stopping anything that feels bad. My back is now getting more likely to be slightly annoyed the afternoons after my morning boot camp and I'm suspecting planks or modified knee push ups are to blame...

Otherwise, I feel great. 😀🤸🚴‍♀️