I'd have to know the context, but here goes...

Does she have a lot of worries on her mind? Maybe she's afraid of disappointing someone she's trying to help? Or maybe it signifies some sort of 'new beginning' she's striving for, but it seems out of her reach (hence the surrogate mothering--giving birth for someone else). She might feel like she's making heavy sacrifices in her life. Like I said, I'd have to know the context of the images to make better suggestions.