halacha

Is it appropriate to offer a blessing to someone pregnant from a rape?

doctors_daughter
asks:
I'd like to direct this question to Hanne Blank. I am Chassidishe, (I know, I shouldn't be on the internet) but needed to find something out that I can't ask my Rav (or anyone on Askmoses for that matter, especially since I know quite a few of their scholars). Does a person say Mazal Tov to an unwed mother? Jewish, maybe not frum, or even worse, a teen mother (again Jewish, VERY FRUM...)?...