Is it time?

We are starting to ttc and I have been tracking my CM and using ovulation strips.. the test was negative but my cm is egg white and stretchy. Is it time to try? We are using a donor so we only get one shot per cycle. I'm confused because the test strips have all be negative but I'm cramping and now the clear mucus (yesterday it was milky in color) Help!! lol Thank you 😊

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