Hey. In the dreaded Tww and I'm slightly confused. I know they're only apps, but glow tells me af is due on the 16th, <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> the 23rd and ovia the 27th. I'm 8dpo, i had a positive opk the 1st and ewcm the following day so i did ovulate. Just not quite sure when I should be taking a pt? Helpppp? X