Just light period or pregnant ?

Ok so my period was 6 days late and my “period” started at like 11am (normally it starts over night) it’s been 3 days and normally I have to change pad 1time at work usually by 1pm (I have it on 630a-1p) this time around I’ve not actually HAD to change it I just did cause I just do. And it’s been SOOOO LIGHT! With my daughter I bled for about 3 days like a super light period like this so I didn’t think I was pregnant until i couldn’t eat one night and was super hungry at the same time, (about 5 weeks pregnant) this time I’ve been taking tests because I’ve just had a feeling at one point I thought I got a very very faint line but was certain and I’ve not gotten and more of a line since (I’ve not taken one in 3 days) should I wait until tomorrow morning or just wait until Monday and take one or go get blood test?

Or am I overthinking a late/light period?