B'sha'ah tovah!
Since your doctor has confirmed that the staining you are experiencing is cervical and not uterine, you are not rendered
niddah from this staining.
To be on the safe side, you should still wear colored underwear and avoid looking at
toilet paper immediately after urinating to avoid finding any problematic stains. You can read our
article on stains for further details.
Please feel free to get back to us with any further questions.