There's really no hard answer to that, as counting days and rhythm methods are notoriously unreliable.
Yes. Bodies aren't clockwork, so counting days and rhythm methods are notoriously unreliable.
Yes, bodies aren't clockwork and rhytm methods/counting days are notoriously unreliable.
there is nothing like natural methods of asexual reproduction...from the term asexual, it means artificial
There are some methods that are known to provide natural tooth whitening. Crunching on crispy fruits and vegetables like apple and celery is one of these natural methods. Brushing with baking soda and lemon juice is another of these natural method.
Douching, withdrawal and Natural family planning.
sexual and asexual
Unreliable is the correct spelling.
QUIT SMOKING IT!
Witchetty grubs are a common nuisance to yard lawns. They can be killed using natural methods such as introducing their predators.
Multiple unreliable narrators Distance between the narrator and the characters Natural and realistic characterization
Unreliable means not guaranteed. In term of data communication unreliable stands when the delivery of data is unacknowledged.