Hello ma'am and welcome.Cerazette
does not cause a false-negative result, and your symptoms could indicate a possible infection, so it would be best to get your urine tested.
It is advised to check for pregnancy
using an early morning urine sample, at least 2 weeks after the suspected date of conception or on or after the second day of a missed period.
Cerazatte is contraindicated during pregnancy, so it would be best to rule out pregnancy at the earliest, by visiting a doctor.
Hope this helps.