You can exercise any time of the day but certainly not straight after a big meal. If you have to attend a Pilates class try to plan your meals accordingly. In my own experience trying to control my abdominals soon after a meal is quite difficult and not recommended. You may also find it easier to exercise later in the day when your muscles are not so tight.
It would be very beneficial for you to take some classes. Although some dvd's are excellent you are not getting any feedback. You could 'think' for example that your bridging is looking good but you could be 'popping' your rib cage, your hips could be out of line, your head position could be wrong. Your Pilates instructor is trained to spot these situations and can give you feedback so that you can feel what is right.
Check the link for a pilatesinstructor in West perth.
I work in a Pilates studio and find it hard to find clip art for such a specialized form of exercise. I suggest www.fotosearch.com.
Yoga is a beautiful exercise. It should in manner and have to be done every move in correct way. so, i suggest you to take either guides of the instructor or the cd's of the yoga.
The Aero Pilates machines are good for both pilates and strength and whole body training and work outs.
There is no evidence pointing to any specific exercise that would benefit the prostate.
As with most profession there are training programs that will certify you as a Yoga instructor. I would suggest checking out www.becomeayogainstructor.org.
There are several different programs you can go through to get certified as a Fitness instructor. Most of the certification programs require a financial commitment and an exam. Since there are different types of certification, I would suggest researching them first.
Buoyancy
There are many good online stores that sell lightweight exercise balls.I suggest you try either www.physioroom.com or www.support4physio.com/ExerciseBalls.
You can, and actually suppose to. It will help you cool off, and healthier. I suggest it.
Combination of exercises which the client can enjoy and likes.
A. after 5 minutes
Swimming is really good. You can do it throughout the pregnancy, up until you go into labor.