Has anyone ever gotten a false negative on a clear blue digital test

ADVICE NEEDED
So I'm not sure what to do but my last period was in May so i took a fr test about 2 or 3 days ago and it was negative could it be to early or should i see a doctor

Help moms especially ones breastfeeding but all opinions welcomed.
I tested for pregnancy May 4th and it was negative but my 2 week mark wouldn't have been until the 7th is it possible that I tested to early and that's why it was negative?
Today makes 3 weeks and 2 days since I would've most likely ovulated and had sex
1. I haven't had a period in over a month
2. I have been feeling nauseous for the last 3 or so days
3. My nipples have been sore (but I am breastfeeding my 7 month old so I'm not ...

HELP
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UPDATE I don't feel that way anymore

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