6 days of positive opk???!?

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I am so freaked out! I  am 10 days late for my AF. I have been taking HPTs almost every day. All BFNs. Also have been taking OPKs. The first one was a fluke because I didn't have an HPT and heard it worked to detect pregnancy. Got a very positive 0PK. Then continue taking both HPT's and OPK's because I have been having pregnancy symptoms. All my HPTs are negative and I've gotten positive OPKs for the past six days. I have a doctors appointment on Monday but in the meantime I'm freaking out. I'm scared I have PCOS or something else is wrong! Has anyone been through anything similar?