Entering my 27th week of pregnancy with a full body strength training session. Allow me a moment to bask in my own awesomeness....
This is the routine I followed. Some exercises I performed to near failure, others I took a more moderate approach. I started by warming up on the treadmill, brisk walk at 2% to 5% incline for 1/2 mile. Then:
Push Ups (modified)
Bicep Curls (standard)
Chair Dips (I hate these!!!)
Alternating Cross-Body Curls
Overhead Triceps Extensions
Standing Side Crunch (holding onto the door frame helped isolate core)
Standing Crossover Crunch
Squats (standard and then wider stance)
Shoulder Press (Military Press)
Lateral Raise (to front and side)
Cool down, stretch, and that's it! The strength training aspect took me about 45 minutes moving quickly from one exercise to the next. I did take a short (30-45 second) break after some of the more "energetic" moves, like those damn jump squats!