I personally still would never ride outdoors while in my last trimester. Last year a route I have traveled on a million times a dog took me down. I was only going about 15mph and this little dog who got loose went straight at me under my wheel I had no place to go but down on the concrete HARD! It's way to unpredictable out there and not worth the risk one bit IMO.
I was cycling with 5 others the dog took out one other person all the people there could not have helped me one bit it all happens too fast. Maybe you've never crashed to know how quickly it all happens and how much it hurts!!!!!

To all other pregnant mama's thinking of cycling outdoors I would take all risks involved cars,dogs, and wonder if it's worth it????