buat upt bila due period. bila sepatutnya awk period tapi x period dh boleh buat. jgn tye org lain, sbb awk yg tau period cycle, period lenght awk berapa panjang. beli upt brand yg more sensitive and accurate. clearblue, disclosure dip n tell. kalau dh due, upt akan jadi samar2 within 10minutes kalau betul kata mengandung.