Hmmmm..I thought I replied to this post before. I had a few really hurtful comments. We have had two ladies at work who have had one miscarriage each (one was her first pregnancy, the other lady had two previous abortions, but this was her first "wanted" pregnancy). After my second miscarriage, one of my co-workers told me that he didn't feel sorry for me after my miscarriages, because I already have children. That was quite painful, and made me feel like I had no right to feel upset, which I clearly was (I took a week off work after each miscarriage).
Another comment which I find hurtful, and I get it from a number of people who know me well, or not very much at all...and that is my daughter is special needs. She has ASD. When I m/c I have had a similar comment, which is along the lines of..."well, why would you want more kids when you already have a disabled one", or, "you probably lost that one because it was like your daughter, so it's for the best"...which, the second one REALLY bothers me, because it implies that I don't want my daughter. I could have a MILLION of my daughter!
I have also had the "just be thankful you have two kids", and "it was for the best" bull shit comments too.