excercising while pregnant

I'm gettin a bit big now, and it's starting to effect the way i excercise. People keep telling me i should be excercising so much if i'm pregnant. Obvioulsy i tell them their full of rubbish and even my GP has a agreed that it would be benefiacial to all of us to carry on excercising.

I would like to know what i should and what i shouldn't be doing if possible. My doc said excercise bike would be really good, so i've been hitting that for like an hour a day. Although it gets a bit boring day in day out.

So has anyone got any good excercises that i could get on with? I was thinking about Yoga, is that any good for pregnancies?

When I was pregnant with the twins I continued doing most of my exercise routes. I stopped doing abdo work completely and any exercisers that needed me to use my abdo muscles but I continued going to the gym, yoga and jogging. I informed my gym instructor and yoga instructor that I was pregnant and they just adapted my route around the pregnancy. I stopped jogging at around 16 weeks as it was proving to much work and I was getting out of breathe a lot quicker so just changed jogging to power-walking. I also suffered with terrible SPD from 7 weeks and that also hindered the routes I was able to do. I would continue excercising but listen to your body very closely. Stop when your body says enough even if you have only done a 5 minute work out.