Opk help! LH surge?

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🌈
Top is yesterday morning
​Middle is this morning at 8.30am
​Bottom is tonight at 8.30pm
​would you say this is a LH surge or its close? This pic looks slightly darker than real life. Can I expect tomorrow mornings to be deeper? We will be bding tonight :)