Am I Wrong?

So my husband and I have been TTC for a few months now. This will be our third baby. My brother in law's gf texted me yesterday to let me know she was about 12 weeks pregnant. They weren't even trying to get pregnant and she was on bc. Is it wrong for me to be upset? She has 3 children already, none of them are biologically his, which doesn't matter, but I still feel like she was trying to rub it in my face knowing that we have been trying for a while and they didn't even have to try. She's always been kind of spiteful. I just wonder if it's ok to feel this way? I feel like everyone in my town is posting on fb that they're pregnant, and everyone keeps asking "Where's yours?". Like, I want to scream WE ARE TRYING to them. 😞 I am happy for them. A baby is always a blessing, but is it ok to feel this way??