Could my hcg be Fluctuating?

I would be only 3weeks and 6days right I have 6 faint positives FIRST RESPONSE EARLY RESPONSE I took two test on Tuesday and they both were positive other two test on Wednesday they got a tad bit darker and I took one this morning it kinda wasn’t there but it was and went to buy a dollar tree test it looked neg btw hospital said there’s was neg too lol idk what to feel My last period was aug 6 and I’m cycle day 23 my period is normally 28 or 30 days