wow I'm so over it my god!

Lydia
So my younger sister just told me she's pregnant with her second by "accident" and her first is only 9months old. 
I'm happy for her but I can't help but cry after I hang up. I've been trying for over a year my god this is so bloody hard! I've spent hundreds on tests and ovulation kits. I'm 12 DPO and got a BFN
The worst thing is, I'm constantly asked "when's it your turn? You've been married for years, don't you want a child?" I'm sick of telling people I'm trying .. I'm so over life right now.