Heartbroken

So I had the implanon in for three years like I was supposed to then I had it taken out. I was TTC, only to be told by my doctor that while I had it in, (I did not have one single period the entire time I had it) I did not ovulate, & that was a problem & therefore my chances of having a child of my own was slim to none. & that if I did conceive it would be high risk. I am 20 years old & have received the worst news I could imagine. I have always wanted a child of my own & have always been very maternal & to find out that I might not be able to give my SO a child of our own down the road is extremely heartbreaking. All of our friends around us are having children of their own & I find it hard to be around them because of that. Don't get me wrong, I am so happy for them, but at the same time I'm sad because since what my doctor told me, its been in my head that I might not have that myself. I'm just trying to cope with this & have tried explaining what I'm going through to my SO but it always becomes an argument because he doesn't want a child right now & he just doesn't understand regardless of the ways I've tried explaining it. I just really need some support right now..