Are these OPKs getting darker?

RR • Together since 2009 | Married since 2014 | 3 M/C`s | MTHFR | Rainbow baby born 07/02/17💗 #2 Due 12/21/20!!
I can't tell if the tests are getting darker or staying the same. I don't have the best vision so that may be the issue here haha What do y'all think? 

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