B cell can't be preg by normal skill, you have to wait for the QTE chance when B Cell tries to use special attack.
same thing like the immunity system bosses in lymph system which I didn't know they became allies once won. When you had immunity system bosses as allies shouldn't they be called corrupted immune cells, for example when you defeated and infect macrophage leader on your side she would be called corrupted macrophage or infected macrophage? Should b cell be well y'know looking corrupted like just like other immune system leaders you beat and infected?