Period or spotting?

My period is about a week and a half late. I’ve taken multiple different pregnancy tests about every other day that have all been negative. I started light bleeding yesterday and put a tampon in at work. Got home, went to change it and nothing was on it so I didn’t put anything back in. Ran some errands, came hime and went to the bathroom and had small blood clots when I wiped. So i just used a pad overnight and woke up with nothing. I kept wearing a pad all day and just went to the bathroom with more light bleeding. Is this considered my period or just spotting?