Is my sister pregnant?

B • • Angel baby 2014 • Little man born 2015 • Angel baby 2016 •Rainbow baby b/g TWINS 2017 • Girl 2019 👼🏼👼🏼🌈
I got my BFP on Friday yay :) but My sister has been feeling off so she took a test. It looks kinda like mine the day before my dark BFP what do you guys think. She is hoping not to be pregnant 😁