Charting on Glow

I've had a very strange period. I started on Thursday. Very heavy Thursday and Friday. Saturday light. Sunday only saw blood when I wiped or on my tampon. Same thing today. How should I chart those days on Glow. I put them as light but I'm not even sure that's accurate. Nothing is coming out onto my underwear. I usually have a week long period so this is strange for me!!
Thanks in advance :)