Is it okay to be jealous?

Rebecca • 29~ engaged to my best friend 💍👫~Baby William born July 14, 2018👶🏻~ Behaviour Therapist👩🏻‍💻💁🏻‍♀️
It seems as though everyone around me is getting pregnant... and here I am anxiously waiting to get a cone biopsy done and praying it's nothing serious... then the gruelling wait to heal and get the all clear to TTC again.  I'm super excited for my friends and co-workers, but I just want to start my family!! 😩
Need words of incouragement please!