Bleeding again?

I just had my son 6 weeks ago, the bleeding had stopped for a little while but it just started again yesterday. Has this happened to anyone before?? I’m still bleeding this morning as well and was bleeding all day yesterday. I wasn’t bleeding too heavily throughout the day yesterday but when It first started it was heavier but not extremely heavy to where I would be really concerned. I have my 6 week check up Wednesday but was wondering if this happened to anyone else?