AF late, used pre-seed

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Question for someone TTC with pre-seed.

I used PS two times last month. I’ve had some sore breasts and a really really sore lower back but BFN when I was 10dpo. I used the cheap tests from Walmart... the first one didn’t work but the second one was negative. AF was suppose to start today and usually she’s here first thing in the AM. Should I retest now or wait a few days? I’m never late with no PMS symptoms.