I’m jus ready to give up

I want a baby so badly. I haven’t used any type of protect whatsoever with my bf in a year and some months. I’ve been to the doctor then got all type test ran, and everything seemed to be ok I’m able to get pregnant, and obviously he can make babies because he has a daughter. I then tried using ovulation test, tried having sex when the app tells me to l, and still nothin. I’m jus ready to say forget it. But saddens me that everybody else has a child or children or about to have a baby, and I can’t even get pregnant. Just stressful.