Yellow CM and sharp cramps

Jenna
Hi 
I was hoping someone would be able to help me. It seems a very grey area when I have been looking but I was hoping someone may come back to me with a similar experience. 
I am very aware of ovulation and my cycle we have been using ovulation yes. Just a few days after ovulation I Had some really yellow thick CM. Since I have ha sharp cramp in my left side mainly and my glands are up in my groin. I went to the docs yesterday and I tested negative for water infection. It was too early to potentially get a positive pregnancy test. I am due on on the 16th. 
Has anyone else had similar symptoms which have turned out to be pregnant. They are sending me for blood tests next week in case it isn't pregnancy
Any help would be brilliant thank you :)

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