Wanting a baby & telling parents


Hi all, so I am 18 and my partner is 22 and we both want a kid, but unfortunately I haven’t been able to fall, I have been to the doctors about it and she can’t see why I can’t fall pregnant, we don’t get it because he has also gone to his doctor and they said that they can’t see why either like we are both healthy, I was wondering if anyone could give us any advice

Also we have spoken to his parents about us trying for a child and they are really really supportive about us trying but it’s my parents, we think that they are going to judge us and I was wondering if anyone else has been in the same situation and could give any advice as well