Could I have experienced IB instead of period

So I started stopping on Tuesday evening before the spotting started I noticed a light burning sensation down below my belly button. When I woke up Wednesday the bleeding looked like it had gotten heavier which looked like my period so I logged that in as cycle day 1 well yesterday which would have been cycle day 2 I went back to spotting again to where it looked like I was coming off my period which I thought was odd. Well today which is cycle day 3 my period ended and me and the hubby did the deed earlier since we have gotten done I have started spotting again...the blood looked stringy looking...has anyone been through a similar experience if so please share and thank you.

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