Left one of my groups - can’t find it now!

Jean • Tue, Jan 01 • 👼 May 2015 (Ectopic 6 weeks), 🌈 👶 April 2017, 👼 June 2018 (MC 7 weeks), 👼 November 2018 (Chemical), 💕 Expecting #2 September 2019

I accidentally left the Aug ‘2019 babies group and now I can’t find it to join it again. Help please!