feeling bitter!

So one of my good friend just announce that they are having a baby boy prolly the fifth friend this month who anounce that they are having a baby. I am happy for them I really am but I can lie I feel bitter in a way I know I shouldn't and that eventually it will happen but I really can't help it. We've been trying for 3 yrs had multiple miscarriage I know it's possible I'm just being so impatient. Am I the only one?