15 days pp bleeding

It’s been 15 days since I have birth I only had a 1st degree tare that needed 2 stitches but was in the inside. I bled heavier the first couple days but since then it’s been light spotting. 2 days ago I felt like a gush of blood and had passed a clot the size of a quarter maybe a little bit bigger. Then the next day I didn’t bleed at all and today while I was out shopping I felt another gush and went to the bathroom and passed another clot but it was lighter red and stringy. Is this normal?