HELP!

Hey guys! I have a question. About 4 days before my period was due, i went to the restroom and found light colored blood when i wiped. I thought i was out for sure, because i was also experiencing mild cramps. I bled super lightly (NOT normal for my cycle) for about a day and a half/two days. It never got heavier like my normal period would do. When the light bleeding stopped, i experienced brown discharge for a few hours and now it is super light colored when i wipe. Could this have been IB??? Thanks in advance!