Wanting a third?

I so badly want another kiddo. We currently have a girl and a boy. The “lotto” as some say. So my husband thinks “we have one of each we don’t need another” but idk. I r always heard you just know when you’re done. And I just don’t feel that way at this point. My husband on the other hand disagrees.

I’m currently without B.C. Because the IUD I had was making me a different person. And my husband won’t have s*x with me cause he doesn’t wanna risk it. That’s how much he doesn’t want another kid. And my libido is up finally.

Should I just throw in the towel and try and get him a vasectomy? Or what?

ETA: my husband is fully on board to be the one who gets “fixed” for several reasons. That’s why I mention him getting a vasectomy and not me getting my tubes tied.