Child birth after paying AOS and processing fees

[kshahusu]

My wife's I-130 petition was filed in feb 2009 and was approved in August 2009. I've already paid the $400 for Affidavit of Support (AOS) and $70 for Processing fees online (not sure if it was a wise thing to do). The reason being, we have a baby on its way and is expected in couple months. I was hoping to get done with the interview and travel to USA before the child birth.

I've 864 AOS application ready to be mailed to NVC along with DS230 part 1 and 2 but am not sure if I should hold on or go right ahaead.

Any thoughts??

Thanks