Fertile Week confusion..HELP! :-)

Hollee • ?
I have been using Glow and Ovia now for the past few minths and have logged everyday. This month though things have gone out of sync between the 2 apps...Ovia says my fertile week is next week and Glow is saying my fertile week is in 2 weeks. Is it possible to be fertile for 2 weeks? My AF only finished a few days ago and I am on CD8..thanks for any advice ladies! X