Mitch4 sends this in: “Seems like the fertility clinic has already done their job, only too well — and the sister ought to be staying out of that place, not going back!”
(intended for Thursday 3/19 but accidentally posted now. So I’m getting ahead of myself.)
Comics I Don't Understand 
I think the joke is that she’s hoping to have A baby (singular) this time, and not octuplets like she had last time. Among other issues, she can’t find anyone to babysit them. But I’m with Mitch4. Why would she want any more to begin with?