Venting! Why is everyone pregnant and I'm not!

So, I was pregnant last year at the same time as my sister in law. I ended up miscarrying and she went on to have her baby! Well, her baby just turned one last week and my husband just showed me a text where she is pregnant again! I want to scream! I just had another miscarriage 2 months ago! So in her two glorious pregnancies I have had two miscarriages! wTF!!!!