Dear Dr. Jonas, we have two boys. You helped us conceive the second one. To our surprise your method worked for us right on the first try. Our second child is a wonderful, talented child. I’d like to ask for your kind help, as I am again unable to conceive a baby. My husband and I desire to conceive a healthy baby girl. We don’t want to take any chances as I am 40 years old already and therefore would like to use viable conception dates since that worked so great for us with our second boy. God bless you!