I feel like crying. RANT DONT JUDGE

My fiancé had a son from a previous relationship she now has 3 different baby fathers and just found out she was pregnant again by a new guy. I've been trying so hard to get pregnant and people like her who take my tax money that sit on their ass all day and pop out babies left and right just could get pregnant with no problem she could barely take care of the kids she has now. But anyways when I found out it took everything I had to not cry I'm so hurt and fustrated with the fact that she's pregnant because she in my eyes doesn't deserve it. She already has two of her kids taken away from her (my step son being one of them) I don't know I hope I'm not overreacting I just wish I was pregnant 😢