Can someone please tweak for me(it's my sisters test)

Samantha • Married to my best friend. Ttc our first miracle since 2012. Through all the down times, our miracle is finally on its way arriving 12/2021-01/2022🤰🏼🍼
She swears her husband and her see a very faint blue line but I believe the test are negative please tweak so I can show her thank you