As a house hunter, you are under no obligation to tell your lender that you are pregnant or plan to be pregnant. Pregnancy is not a legal reason for a lender to deny you a mortgage, unless your income changes in a way that makes you no longer qualified for the mortgage. I answered this question in 2008, when I was writing for Boston.com.
This is what I wrote (Reprinted from Boston.com by Rona Fischman November 11, 2008):
Hi Rona, … I have a general question about mortgage approvals in these tight economic times… 1. How does pregnancy effect