Spotting ?

I am new to BC I’ve been on it for about 5 months now and I’m only spoting this month instead of a period.

I usually start on the 11th but the last 2 months I’ve started the 8th and then 9th.

It’s just very light and weird.

I’m used to rivers of blood.

I know that the point of BC is to regulate/ slow down and make your period lighter but this is just weird.

Also I’m not sexually active.

My bf has fingered me twice but I know that’s not how things happen. So dumb question I know. Please help.