AF is here but NO clots??

My AF usually lasts 7 days, two very heavy days, and the rest are fairly medium/light. I usually have a 28 day cycle. Last month, my AF was very light, and only lasted three days. I took a test, and it was negative. A couple of weeks later, I tested again to be safe- nada enchilada.

This month, AF started 4 days early, which is pretty unusual for me, but whatever. But it's been really light (only filling MAYBE one pad a day- but obviously I change it more often than that 😜) and no clots. If only one symptom showed up, I'd brush it off. But early AF, light light period, AND no clots?? I've tested, but so far all is negative. Is this normal??