Well, I don't know what is medically a wise decision... but to me, if I were pregnant... I would not get on my road bike. Simply for the fear of having a wreck or getting hit by a car.

Accidents happen when you least expect them. I would not risk my pregnancy by putting myself in potentially dangerous situations. Yes, I know accidents can happen walking down the street, but riding a bike on the road is just making that risk even greater.

I would go to spin classes though. If I were to ever get pregnant, I would certainly keep working out till the end!

Best of luck with a healthy pregnancy and I hope you have a beautiful bundle of joy!