ok need some advice

Justine • we have our babyboy Ethan born may 13,2016 n our babyboy Emmett July 3,2017 and our babyboy Elliott born August 8th 2018(:!!! I love them so much

ok I'm 21 married 2 Beautiful baby boys 1 is 18 months the other just turned 4 months at my 2 week check up Dr put me on birth control the mini pill while I'm breastfeeding I've been bleeding still heavy everyday since July 3rd only maybe 2 days no bleeding then after that I'm back to bleeding and brusing alot in random spots but I felt weird decided to take a test only the cheap 88cent ones from Walmart I see a lite line n I'm kinda freaking out