I"m so sorry you had to go through that. Sending cyberhug.

please, please please don't beat yourself up because you didn't have the "right" emotions when you were pregnant. There are no right or wrong emotions, only actions.

I would suggest you just be honest with your friend and tell her you want to be there for her, but you're also dealing with your own grief. It might be awkward sometimes in the next months, but awkward is okay, better than not being honest.