Could i be experiencing implantation bleeding?
The brown stuff you noticed could have been old blood from your period which hadn’t come away. Brown blood is always old, whilst fresh blood is pink or red. I would suggest that after 4 days and still just pink on wiping, it is unlikely to be an early period. It is too soon after your last period for it to be implantation bleeding I would imagine, as it’s really not likely that you conceived in that time. Having said all that there is always an exception to the rule!! Another suggestion might be that if you have been having intercourse, then you may have a cervical erosion and sex is causing it to bleed. I would always advise seeing a gynaecologist for ANY irregular bleeding.