WTF?? Fertile window randomly changed??

Kristen
I just opened glow and my fertile window completely changed and is not in line with my clear blue advanced OPKs at all. According to my OPK I was peak on 3/14 and glow updated my window to 3/9-3/15. I just opened glow now and it changed my window to much earlier. As of this morning I was 8DPO, now according to my chart I'm 14DPO 😳. 
Has this happened to anyone else? Is glow basing my ovulation date on my bbt and cm logs rather than my OPKs?