Period?

Hey loves, im on my fourth month of the pill and I’m still not used/know if this is my period, I am slightly sexually active but I take the pill perfectly and use confirm. Ever since I started the pill my period are shorter and way lighter. Like I went from 7-8 days to 3-4. These are some photos, is this my period?and is it more that my period stops after I have a slower?

Saturday

Sunday, before shower

20 minutes after shower

My period stopped after my shower and there was almost nothing, then I put I tampon in for 30 minutes Monday morning (this morning) and this is the outcome

Then today, 8am-2:30pm.