At what point should i tell my employer?

Ash

I literally just found out yesterday. I'm not even 4w. I work in an office and only started working there 6mths ago. I LOVE my job, and I'm so afraid of telling anyone, as I already have 3 kids. All the women I work with, although awesome, are all menopausal and sort of jaded lol. I am in Canada and get a year mat leave, but I'm just starting to build my career.

I was thinking around 15w?