Can someone please help me understand my chart?

Adele • 27. TTC baby #1 for 11 months, born July 2015. TTC baby #2 since march 2016 BFP Aug 2017 MC at 5 weeks BFP Oct 2017 🌈 Rainbow baby due July 2018🌈
I'm 7dpo and this is my first month charting bbt and I know you should chart for a few months before seeing a pattern but I just wanted to know if my chart looks normal. My temp seemed to spike up quite high today is that normal??

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