Does it hurt the baby when you are sad?

I been sad all day, can't stop crying and I don't want that to hurt my baby but I don't know how to stop crying and feelimg like crap.

I was extremely excited that I was gonna see my man (he found a new job far from here so I haven't seen him in 45 days) he only came for a day to the town and didn't come to my house because my mum was here. I don't understand why he doesn't want to see my mum, she accepts him and never said anything bad to him. I taught he wasn't going to care of she being here because we haven't seen each other in a while and I was hoping he had missed me as much as I missed him. It makes me sad and I'm extremely dissapointed :( I feel that he doesn't give a s#it about me. I don't want my baby to feel my sadness! What to do!