What should i do...

In need of some advice...

Me and my fiancé have been trying to have a kid for almost 2 years now. Nothing. Been tested there is nothing wrong with either of us. I’m starting to get depressed due to failing he wants to be a dad so bad and it just isn’t happening for us. I cry myself to sleep because i want a kid as well our siblings have kids then there is just us... at this point I’m losing faith