I gave birth 8 weeks ago and went to the Mikvah around 10 days ago. I am on the mini pill, and have since began having pinkish watery spotting that I've seen on tissues, not immediately after urinating.

When do I need to consider this discharge a flow? I've heard that it's enough to need a pantyliner, but I'm not sure that applies because I wear a black one every day for comfort, as i often have clear/yellow discharge. I also find I need to change them frequently because the black ones I have are very poor quality and often get rolled up and uncomfortable. Will wearing regular white pantyliner render me niddah in this case?

Also, is it normal to experience this spotting on the mini pill when I am nursing full time? It seems to be accompanied by an uncomfortable vaginal burning sensation and I am wondering if the two could be related.