TMI POST

So It’s been 4 weeks since I had my baby via c section. And my flow started to seem like it was really going away it was so light for a few days and all of a sudden BOOM. I’m having to wear depends because I don’t want to get blood on my underwear. This morning around 3 am I went to the bathroom and out came this first blood clot. And now at 7am this second one. Should I be concerned? What can happen from blood clots??