Having a hard time...

Okay, so DH and I have been TTC for 7 cycles now. We are both 25, married, he's taking over a family business, and I just graduated. My younger step sister whom is unwed, living with a guy who is in and out of jail, and refuses to get a job or go to school is giving birth to her son today.

I'm having such a hard time with this because she insisted on telling everyone in the family that she refuses to let me be the first person to have a grandchild in the family and she purposely got pregnant.

It's hard not to take this personally when DH and I get a BFN month after month. I'm on my 2WE right now, and I can't help but feel like this just isn't going to happen for us.