Anyone else still bleeding?!

My son will be 2 months tomorrow. I bled for 3 weeks then stopped, then started up lighter a few days later, stopped then stared it up again, then stopped at 4 weeks.

I got my first PP period just before 6 weeks PP it lasted for 8 days then stopped. This morning I started having lower back pain so I went to the bathroom and nothing, about 10 min ago I went to the bathroom again and there it was I was bleeding. Blood wasn’t super dark but it was pretty dark like period blood! I’m confused and scared; I have a doctors appointment tomorrow so I’ll ask then but I was just wondering if this is happening to anyone else?

I have my tubes tied