One day of birth control

Ne💕❣ • Mother To An Angel Baby , Currently Pregnant With Rainbowbaby Coming March 2017
One day of birth control my period is fully back on , but it was spotting / light bleeding May 19th & may 20th may 21( it look like it was going off , but obgyn said when he did my ultrasound it was finna come on) but Today i took a pill than my period got heavier  should i stop takin it or just finish this pack?