I feel like my heart broke again a little 💔

nele
After 11 months of trying & our 4th round of clomid, I fi-na-lly ovulated after I got a trigger shot (pregnyl). Saturday AF arrived. Sunday my husbands sister announced they're expecting a baby in september. 
I hate how jealous I feel. 
I hate how sad my husband looks. 
I know I have to be happy for my sil. but I can't. not yet.