OHHH I hate when my DH does that! After a while, I really honestly started to believe that he was doing it on purpose cuz he thinks that the only reason I want to have sex is so that we can make a baby! Silly Billy!
That happened to me this month too! I tried what Kim suggested but DH only said "I'm gonna be tired at work if we do that, and I blah blah blah" Totally shut me down! I was sooo pissed!!! That's why I'm positive I'm not pg this month. When we did BD it was only like CD 11 or 12 and then maybe around CD 16.
Try Kim's method and I agree, get him during the day! Just get him all hot and take it from there! Good luck! DH's can be really difficult at times!
~Mo~