Nishmat's Women’s Health and HalachaIn memory of Chaya Mirel bat R' Avraham

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Avoiding niddah when checking cervical fluid

12 June, 2017


My husband and I have been trying to conceive for 6 months now. I've been having irregular and long cycles (from 28–40 days) so I don't know when I am ovulating. I have also been using urine ovulation tests which seem to be inconsistent for me.

I would like to start monitoring my cervical fluids to figure out my fertile periods. But,I am concerned about potentially making myself Niddah by seeing colored discharge when I wouldn't otherwise.

Do you have any advice on how I could check myself while avoiding a potential Niddah status?


It is possible to feel and assess the cervical fluids without looking at them. If you are concerned about possible staining issues, you can try monitoring your cervical mucus by touch. Then wash off your fingers without looking.

It is also possible to check the cervical fluids at the vaginal opening without inserting your fingers internally. Any staining that is found on your fingers may be disregarded if the problematic parts of the mucus are cumulatively less than a k'gris (the size of a US dime or Israeli shekel).

Please note that according to some opinions, during the seven clean days a woman who inserts her fingers internally to check the cervical mucus must examine them afterwards to look for any staining. This is the position of our rabbinic supervisor. You can consult with your local rabbi for his position on this matter.

You do not mention your age. If you are under 35, then it is generally accepted to consult with your doctor after 12 months of trying to conceive. If you are over 35, then after six months is an accepted time to ask for help. In the case of very irregular periods as you are describing, it may be worthwhile to consult a bit sooner, even if you are under 35.

Please feel free to get back to us with any further questions.


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