Everyone seems to be getting pregnant bar us

Myself and my hubby have been trying for 17months for a little one now, we have been referred to hospital for fertility treatment (all tests normal apparently but I was told I have endometriosis when I was 18).

I feel terrible, everyone seems to be getting pregnant around us in the past 12 months, 3 of our cousins, our 4 closest friends, 2 of his siblings. I did get pregnant earlier this year but lost it whilst he was on his cousins stag do (the cousin who told me they are expecting last night). Which was heartbreaking but, I just keep telling myself it wasn't a viable pregnancy.

There is part of me who is thrilled for them all, I really genuinely am, and I love meeting the new baby's as they come along. We have more than 20 nephews and nieces alone, it is always lovely to get a new one.

But, there is part of me that is jealous of them too. Is that terrible? I feel happy, sad, frustrated and guilty all at the same time.