38 days is not normal.. Hmmmmmm!!
Has she went to her Doctor about the situation???? I am the same age as your wife. My hub and I tried forever before going to a Specialist... They still can't find one thing wrong with either of us (and we did 2 IVF's)...
But I am just thankful to have my 2 kids...
Good luck to you and your wife having a baby...
Cathy