Implantation bleeding?

Hi I am currently 10dpo. I started lightly spotting yesterday evening.... I took 3 tests and they are all light positives. So I need help to see if yall think this is what I think it is!!! This would be my 5th baby!! I am having all symptoms.  Boobs are super  tender., Nausea, headaches, backaches and def. Mood swings. Please let me know y'alls thoughts I'm new to this site.