Anyone had a + opk and AF due on 10/31

Massy • Mommy of preemie twins born at 29 weeks with IVF fresh transfer
Has anyone had a positive opk already and AF is due on Oct 31st????? I just bought them today because according to glow my fertile week starts tomorrow, but I've been baby dancing (sorry if tmi) since the  day after AF ended just in case :)