Period 6 days late, came and “ended” now I’ve been spotting for daaayys

So I posted about a week or so ago about my period being late after having sex and the condom coming off during my ovulation time. Well it came 6 days late and it was very heavy, lot of cramping- way more than usual- now it has ended but I’ve been spotting a lot for about 3-4 days and it’s just so weird. It never really happens. I took a test the day before my period came- negative. But now it has me wondering again because I never spot. Anyone experience this or have any input or advice?