Just had my period and I'm bleeding again??

So I just had my period on the 31st of last month, ended on the 5th of this month and it was a crazy heavy flow. Like I had to change my (super) tampon every 1-2 hours. I NEVER have to change it that often. And now (the 15th) I started bleeding again??? It's not a lot but I think it's a little more than spotting.. I'm scared I had a miscarriage or something or I am pregnant?? I just had my son 5 months ago and I didn't spot at all with him. I'm really scared so if anyone has had this happen to them or has any ideas that would be much appreciated. Thanks 💕