Need advice!

Sog 🎀
Me and my sister in law found out we are pregnant 5 weeks apart (she found out first) by the time i found out and confirmed with Dr. , my sister in law had a miscarriage and I never had a chance to tell her our good news.. Its been almost a month since their loss; I want to announce to them before everyone else (parents already know) but I dont know how long should I wait before it's appropriate?  Any advice?