Looking for advice. Been TTC for 16 months now. This month tried the advanced digital opk and preseed. I am on cd 16 and have third flashing (high) fertility. Glow predicts a 32 day cycle, I am usually a 28/29 day. Only have one opk left. Trying to decide if I should order more advanced digital OPKs or if we should just try to dtd every other day until anticipated af