Re: Sleep regression and menstruation weirdness
Welcome to the forum!
The night-waking is probably coincidental. If anything, you've been outrageously lucky in having a baby who slept through so early and so consistently. Most babies do increased both night-waking and night-nursing at various points during their first year, particularly during intense teething or when mastering a new developmental milestone.
Are you using any form of hormonal contraception? Irregular light bleeding (a.k.a. breakthrough bleeding) is a really common side-effect of hormonal contraceptives. If you're not using hormonal contrapcetion, have you been doing anything to prevent pregnancy?
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"