Glow changed my cycle

My cycle changed, showing my fertile days and next period farther out. I think this was because I started tracking my bbt mid-cycle and it showed a spike (could be due to my getting used to bbt). My periods are like clockwork, so I deleted all the bbt data I had recorded hoping it would adjust back to my correct cycle, but it hasn't. What can I do? Wish it would have waited to use my bbt data until there was an actual trend.