Postpartum bleeding

Ok ladies, I have a question. I’m 16 days postpartum. I noticed yesterday that my bleeding (lochia) started to increase in amount and has gone from a pinkish color back to a darker pink, almost red again, color. Should I be concerned? I’m not filling a pad in an hour or anything, but the flow has definitely increased and I passed a clot yesterday, which I haven’t done in almost a week. Is this normal for only 16 days postpartum?