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An

Okay so yesterday at 7 dpo a got a vvvvvfl. Tested a few hours later and it was negative. I normally get positives at 8 dpo. I did with all 3 pregnancies. I tested this morning at 8 dpo with fmu and the line was darker than my fmu test from yesterday. I tested a few hours later today and it was lighter than this morning. Anyone experience this? Top test is this morning, bottom test was a few hours later.