Why am I not pregnant?!

This is a hard topic for me. I have never posted on here before, so I'm hoping for kindness and understanding. don't think I can take negative or harsh comments at this point. hubby and I have been trying for 2.5 years and he got a test saying he is fine and I recently got a test and awaiting results ... but ive been pregnant before and lost the child so I'm having all sorts of thoughts about that and now not being able to have a child. I know I'm not alone and everyone struggles. a friend of mine struggled for over 2 years before becoming pregnant. I guess I'm just hoping all hope is not lost. I understand adoption and fostering. I am having a hard time seeing that I was pregnant before, without trying, and now that i want this more than anything, cant happen. just looking for others who share my hard times and understanding. please bo negativity. like I said, I'm hurting badly after almost 2.5 years. I'm looking for building up among us females, not tearing down. guess its a fear. mentioned something on facebook almost a year ago and got nothing but "there is always adoption". i know there is but god help me, i want to try everything before that.