What the hell does this mean??

Okay so I’m 24 and I have a three month old AND I’m breastfeeding. There is a good chance I’m pregnant but my period has officially passed. All 5 days. I’ve never really had this problem before but I’ve taken SO MANY PREGNANCY TESTS!! Every. Single. One... NEGATIVE 👎. then I had some spotting very light and pink. A few drops on the toilet paper. Now I honestly don’t like posting pics like this buttttt I’m stumped 🤔 and wondering what’s going on!!! Please just leave a comment thanks 🙏