How can I get help??

To get pregnant? Like how do you get doctors to take you seriously when you’re 20 years old but have been trying for a year with everything you have and nothing’s working and you know you need help. Is anyone even gonna try? And it’s not like I’m some young irresponsible girl trying to get pregnant when she’s not ready. My husband and I have been together for 5 years and married 1, we bought a house this year, we’re comfortable ya know. My last doctor didn’t really give a shit knowing I had super low progesterone, she said everything’s fine and keep trying. I’m done trying my hardest for something for a year and have nothing to show for it. It’s so heartbreaking and I just need help and I just know I won’t be taken seriously. Idk what to do.