Where Is Your Bike Helmet, Hilary Duff? [PHOTOS]

We’re all for leisurely (pregnant) bike rides, but with Hilary Duffs fragile state, we have to insist that she wears a helmet whilst bike riding.  Earlier in the day, Duff headed to yoga class in West Hollywood. Totes digging the sheer grey shirt.

PHOTOS: We Like Your Red Carpet Look, Hilary Duff

“Guess which little monkey is going to spin class with me?? The little chosen one! So fun to get to bring your pups!” the actress tweeter earlier today.  Duff also mentioned that she was packing for a trip to Brazil.  A little babymoon action for Mr & Mrs. Mike Comrie?