@TTC2022newbie congratulations!
You work it out from the first day of your last period, so when most women find out is when they are actually already 4 weeks or around that time (based on a 28 day cycle). My cycle is pretty long, like 35/36 days, so I was already 5 weeks when I found out!
I live in the Netherlands so it's a bit different, I called my doctor straight away to tell them that, and they told me to pick a midwifery practice, so I contacted them, gave all my info etc, and now I have my first check on the 25th of November!
I am just like you, first pregnancy, although I have been lucky in being successful trying on the first go, I am aware that I have been diagnosed with PCOS, which carries a slightly higher risk of miscarriage, so am trying to tamper my expectations!
Has anyone else had insomnia the first/second week of finding out? I've been waking up at 5am and not being able to fall back asleep, so annoying as I'm very tired during the day