Am i the only one?

My husband is the most amazing man I have ever met. I came into this relationship with 2 children from my previous marriage and he never though of them as not his own. I came in a wreak and emotionally scared and with walls. I got a tubal ligation knowing I never wanted any more children with my ex and at the time I didnt know there was a way out of a emotional and phycal damaged marriage. However there was and I got blessed with the man I have now. He read that there is still a small chance that we could get pregnant. So he asked and said "I know you go threw alot of pain with cyst and other stuff since the surgery but I want a baby with you" how could I say no? I mean this man stops the world for me for anything!! Im more then happy to have a family with him and watch it grow so what's putting up with a few more months of pain if thats what he wants and its the only thing he has ever asked me for then I couldnt say no. However, now every month he tracks my ovulation on here to lmao and every time my period comes around he is prompt on how I feel what I eat and how i sleep. I dont mind but when my period comes I feel like i let him down. He says "okay well we will try again" and kind of wonders off I can tell it upsets him but he dont admit it. Every month i seemingly let the love of my life down and I just want to stop trying. Am i the only one?😭😭😭 is there any other non expensive way to up my chances? I take fertility pills and use the lube i put my feet up in the air I uave tried everything. I just want to give him what he desires so bad mommas and I feel like a failure not being able to.