Since your balance may not be what it used to, be extra careful getting in and out of the tub. Ask for help. You will have to adjust your program as your pregnancy progresses. If you haven t been doing an exercise program, this is not the time to start a strenuous program. Walking 40 minutes each day is a great way to get aerobic exercise.
Swimming is also very good.
Let us know if you have any questions about what you can do. Continue with your kegel exercises. It is very important that you know how to relax and contract this muscle for the pushing phase of labor.