Trying to get PREGNANT at 43yrs of age ???

Phillip
My wife and myself included, are trying to get PREGNANT !! Yes we are up in age, we are both 43yrs old. If anyone has gone through this, and can give us some advice, please comment back. I've heard of different supplements to use, and I've also heard of a black tea, but can't find the name. I have children myself, but I would love for my wife to bring our own into this world. The doctor says we have a 3% chance, but in my heart I feel different... Any advice or ANYTHING PLEASE SHARE !?!?
Thank You