Late ovulation?

Emily

I've been tracking my fertility using a clearblue digital monitor. Been TTC for just over a year, 29 years old. I've usually ovulated (hit peak days) on day 13 or 14 of my 26-27 day cycle. This month I didn't think I'd hit a peak day because it wasn't coming. However, I showed ovulation peak days on days 22 and 23. I've never had it this late.... I feel if we even did conceive my Lutal Phase would be way to short to have implantation. Any thoughts on why I'd ovulate so late when I've been so regular before??

Side notes.... I have completed 3 months of clomid and this is our first month trying Femara and estrogen supplements.