Long Period

So I’ve been off BC IUD since July 2019. My first period after that started in September and was regular until Jan 2020. No period again until April 2020 and it was extremely light - one small blood spot in a pad per day, but light spotting every time I wiped. This lasted one week. Now this month I have the same light period and blood when I wipe but now this is my third week of it (started 5/5 and still present today. Any thoughts?!

Yes I’ve taken preg tests and negative and had a blood test in March to be sure.