Venting!!😩

I admit my husband and I haven't quite been trying as hard as we could but we still have been trying for a while to have another baby...and it hurts every month when we're unsuccessful and to find out today that a friend who even had an IUD in to make sure she didn't get pregnant, got pregnant anyway and this is her sixth child! I am happy for her but sad again I feel like God doesn't want me to have another child or else it would've happened by now ...I don't know wat to do..or how to feel

-Disappointed