2 periods in one month PLS HELP

Megan

So i take my birth control everyday and on time. I already had my period earlier this month and started a new pack and now I’m on week 3of the pack (i included a pic) I’ve been on birth control since April and i never had 2 periods before….

I’ve been stressed lately because i just started nursing school, had my first nursing test yesterday, moved from full time to part time at work, etc..

i also would like to state i don’t have insurance since i don’t work full time anymore 😅

I was breakthrough bleeding for the past 3 days and i just went to the bathroom and i just started my period when i wasn’t suppose to……

I tried googling searching and it didn’t help. Should i be worried? Should i take a pregnancy test because i am sexually active but my bf and i use the condom and the birth control. Is this from stress?