How do I correct how far along I am?

Morgan

I was using Glow when I found out I was pregnant, and I mistakenly put in the wrong date. The app now thinks I’m 8 weeks along when I’m really 12 weeks. I’ve tried to go back and erase my last false period and update my log to say I was getting a positive pregnancy test earlier on, but nothing changes the “8 Weeks”. How can I correct this?