need some advice and help!

Rhiannon
Hi ladies I'm wondering if anyone can help - I have been using opk tests strips the past week and a half and I thought they were getting darker but today it looks lighter -
I had egg white mucus yesterday but the opk said negative 
I felt my cervix today and it is soft and has some give and i think it's open and is very high up! But just did an opk again and it's still negative ? And maybe even lighter than the last opk I took this morning ? 
Have I maybe missed my surge could it have been lastnight ? 
I'm confused :( help! 

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