A little Confused

Jess • Been with the love of my love for almost 8 years, married 17/08/19 baby boy 💙 👶 05/10/2019 baby boy 💙👶 April 2022 baby girl 🩷🧒 March 2024

Having been ttc got my period but was 3 days late & only lasted 3 days which for me isn't normal, normally 5. Does anyone have any ideas?