5weeks or 6weeks

Mostly kira macam apps ni. I pun ada try apps lain yg kira advance 1 week. Confuse juga but i ikut apps sini. Sebab logic kalau kira 1 week tu after 7 days kan bukan the first day

Pergi setting sis.. maybe app yg lain tu start dr 1w Gestation Age tuu.. awak klik Count as Week 0 ~ yg 6w tu App Period Tracker (Android) / P.C. (IOS) ke?

Usually I count from the first day of period to the first day of next. 🫣

Wah sama 1st day last period 8jan