Could I be pregnant?

I took a test on the night of the 29th and it was negative and I had a little bit of pink and clear discharge on the 31st and 1st but not enough to even need a pad or tampon just seen it when I wiped and now it’s just back to clear and I’ve been having cramps and my boobs hurt. Could I still be pregnant and should I take another test or is it just my period about to start? I’ve never had this happen before.

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