Temp changes.

Hailee • Married June 2014. TTC since Aug. Lost baby #1 at 4 weeks on New Years of 2015.
The first pic is last months temp and I was pregnant but miscarried on New Year's Day. The second pic is this month. Why are they so different? Iv never had my temps be the or pretty much the same. Any help would be great. Thanks! And for the first pic I forgot to take my temp though ovulation that's why it's started there.