To take a test or not to take a test?

Cycle is from 28 days to 30 days long. First predicted period start date is tomorrow. Did not use opks this month but had lots of baby making time lol. What would YOU do? I have been cramping since yesterday but now I have back cramps. I NEVER have those. But it could be a fluke. Tell me what to do, women of glow.

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