My doctor said it was FINE too. Take his word and not everyone elses, you will get all kinds of opinions otherwise. For what its worth, my doc said it was okay as long as im not doing anything that can make me hit or bump my stomach and to just make sure the workout im doing is comfortable and not strenuous.
Look up pregnancy work outs on YouTube, your not supposed to work out where as though you have to try & catch your breath or start breathing heavily .
I look up pregnancy work outs on youtube n do thoes ervery now and then but normslly I just go for walks