I am in a similar situation sans the child.  I was preapproved by wells and it all looked good, then whamed! denied. The u/w didnt feel comfortable approving the loan.  So now i am with two different brokers who are looking at it. I'll miss my original closing date.  But hoping it will be completed by the 2nd week of October.   I would say try a  broker as they may have less overlays than big banks have.