I have some for you
Do...
*drink lots of water
*use a perceived exertion scale or talk test to make sure that you aren't going breathless
*take it easier if your body is telling you to do so
*make sure you get plenty of rest
*ab work on an incline (like head up, not the reverse), on your hands and knees, or in a sitting position with pillows or a stability ball behind your lower back.
Don't...
*twist if your abdominals are split (diastasis recti)
*don't do anything that causes any discomfort on your joints (you'll have lots of the hormone relaxin in your system, and it is easy to over-stretch or to cause joint injury by lifting to much or doing thrusting movements as in kickboxing... you might not have to give up kickboxing, but LISTEN TO YOUR BODY!!)
*do anything that hurts.
*go to your maximum intensity, but don't be afraid to sweat a little... moderate is the key during pregnancy.
I'm 32 weeks along now, and I'm still plugging along with my humongous belly. As of this morning, I'm suffering from sciatica, so there will undoubtedly be some things I'll need to modify in my workouts... like I'm definitely going to hit the pool to get some of the weight off of my aching back & rear end!
Hope this helps!
Susan
Healthy Moms Certified Perinatal Fitness Instructor