I keep saying this!!! I think Jess made that comment to redirect people away from hating on the Michaela reveal. If Penelope got pregnant during the mirror scene, she would only be about a month behind Prudence and Phillipa pregnancy wise... but at the butterfly ball, Prudence and Phillipa already have little baby bumps. And then, in the 'epilogue', baby bridgerton is maybe 1 month old-6 weeks old while the baby girls look closer to 5-6 months old.