Pregnancy Announcement 🤰🏻📢

So I live with in laws and 1st pregnancy didn't tell them till 12 weeks but they're living abroad now they're living with us so I don't know if I should tell my MIL cuz she is like a loud speaker and tell her eldest daughter 1st thing. She tells her everything even a leaf falls and she got 5 kids now so they're just very nosey and I don't like talking or sharing too much. That's why I keep all stuff to myself but now the midwife about to visit next week and obviously in laws will be home so im pretty sure they'll ask us and my husband will tell them but just asking should we do before midwife visit or after?