Feeling frustrated

I guess I just needed to vent a little bit. My husbands uncle just started dating some girl like two months ago, and I just found out she's pregnant. Mind you she already has three kids to two different men who are both in prison and she doesn't have custody of any of the children ( ages ranging from 5 months-7 years). I'm not bashing anyone who has children to different men, I guess I just mean she's obviously unstable (from the men she chooses to her own personal problems). Anyways it's been over two and a half years of trying and I haven't been able to get my miracle. I feel like I loath those women, and by "those women" I mean the women who can have babies without even trying and don't take that miracle as a blessing. I'm jealous and frustrated, anyone else going through anything similar? Am I terrible for feeling like this?