Help help help!!!

Kennedy • Married to my soulmate since 7.4.2020!💍💞 We have a 4 year old son, who took a year and a half to conceive! We are expecting baby girl March 11th 2021 after 2 1/2 years of ttc with fertility treatments 💖
So I took a clearblue digital weeks estimator and I am so confused !!! When I peed on it it was flashing the hour glass but not at a steady pace and it was also flashing a book with an arrow beside it... What the hell?! Ive watched videos on live pregnancy tests on the CB digital and none of them did this before.. Then once it was time for the result it was flashing between the 2 pictures below .. I can't test again until the morning.. I am 11 days late. And I was so curious of why it was flashing that and i broke it open to find a test strip with a faint blue line on it. Does anyone know whats going on??!!