Am I selfish or irrational?

So my bf of 3yrs and I are expecting our first child together. We each have 1 biological child of our own. He also has 2 outside children that he likes to claim, 1 he found out wasn’t his and the other he helped his ex raise. He still has “friendships” with these mothers. I’ve never met them, they’ve never had the decency to show appreciation for what I’ve done for their children. It’s like I’m an invisible person that’s not being acknowledged as the woman in his life. Now that I’m pregnant, I want him to only be concerned about our biological children. Idk if it’s the hormones or what 🙄 am I wrong? Or should I continue to build a future dealing with this? I feel like this could be an overall strain on our relationship especially financially as these kids get older.