I want to keep trying but my husband wants to stop trying for awhile.

I want to keep trying for a baby but I'm getting supper sad evey month here comes Aunt Flo this month and my husband wants to stop trying for awhile but always have baby in the back of my mind just getting nowhere even after trying for 3 years. My husband said I'm programmed on nothing but having a baby ever since the last year. At times I don't even know I'm talking about   things we can do to improve or chances to get pregnant. It just the first thing on my mind and doesn't help when all your friends have a baby or family keeps asking when they can exspect grand babies. I know it will happen when it's my time but I've been getting so frustrated about not being able to do the one thing we where made to do. I'm most likely stressing myself out on having one so bad but I'm ready to have that little bundle of joy in my life and my husband and I to start our own little family. I've done everything to prepare myself to be ready gone to all my doctors to make sure my body is ok,  from baby books to budgeting classes and have everything I want to buy on a list for when that day comes. Everything is set but justcant get pregnant.