Others announcing their pregnancy

Normally I get excited for others and all. But considering it has been almost three years of trying, I have grown to resent them. I don't care to know I don't want to hear it. I can't help it. It's my immediate thoughts. Even my supposed to be mother knows of our struggles and brought some girl up to me at work telling me her and her boyfriend were pregnant. Seriously? Go on somewhere with that. I haven't obsessed over trying like some women but it hurts knowing how long it has been and nothing. We do use opks every couple of months just so it's not constantly worrying but oh my god. Why can't my husband and I get pregnant and all these that aren't married, cheated on their spouse, and having abortions or on drugs having them???