Do you see a vfl??

I have looked at so many I can never tell 😭 my husband says I always see a line lol please help! I woke up Saturday with a little brown blood. I have yet to have a period since having my son in July 2019! So I thought I was having my first... but it was over by Saturday night. I am wondering if it was implantation bleeding.. or if periods while breastfeeding are WAY lighter ?