Died inside

So my husband and I have been struggling for some time now. It's been hard on our marriage, and we feel so disappointed month after month. We got a phone call last night from his dad announcing the pregnancy of his step sister. Due to a cervical procedure, I know for a fact she only was able to start trying a few months ago. Since she is already approaching second trimester, that means she literally got pregnant in 1 try. I just died inside when I heard this. His stepmom is baby crazy and has made a huge deal about her daughter getting pregnant for years! Her wedding was only a year ago, but her mom announced on that day so hoped her daughter would get pregnant soon! Meanwhile, she had irregular cycles and needed a LEEP procedure, so I felt like maybe I had a kindred spirit who might take a while get get pregnant. Nope, one try. I feel so devastated and alone and these pregnancy announcements just keep coming. Pretty soon my husband and I will be the only childless people left.