Is it wrong to not be happy?

Liz

A while ago my boyfriend and I found out we are pregnant! We were so happy and really looking forward to being parents. Two weeks later I became really sick and went to the hospital and found out I had a miscarriage... I was only a few weeks pregnant but it was still really hard on my boyfriend and I. If this already isn't hurtful enough, my sister, sister in law and my best friend are all pregnant as well. Our roommates just had a baby that is less than a month old now. I feel like I should be happy for my family and friends but I cannot get over the loss I have experienced. Is this feeling wrong?