Rude Co-worker

So a co-worker told me that 1 of our other co-workers asked how I was doing because I've been out for the past couple of weeks due to fibroid redegeneration. She told her I was doing well and would return soon. This rude persons response was "oh that's good, it's so gross that she's pregnant" when asked why her reason is because "SHE'S OLD" talk about rude. For 1 I just turned 36 and this lady is way "older" than me. Too old to be negative if you ask me. Have anyone of you encountered a situation like this??