Bbt Help! So my friend told me to post my chart because we are curious what is going on this month. Positive OPK on CD 15 and CD 21. Glow says I ovulated CD 22 and Fertility Friend says CD 18. Any ideas?

Haley • Married • Have a fertility group on Facebook, let me know if you wanna join• Son born 7/11/16 • pregnant due 8/17/18