Off the patch and missed my period, BFN

Grace • Blessed with a beautiful little girl, now expecting baby #2 due February 2022 💗👨‍👩‍👧🤰💗

I'm 3 days late on my period. I took a first response test and it's negative. I attached the picture. I'm never late but I don't know if this is because I got off of the patch and this is my first cycle without it after 6 months. Has anyone gone through this after the patch?