You can collect the saliva sample for an ovulation test (or fern test), directly with her finger. However, it is important to have previously washed and dried your hands, so that the finger is clean and dry.
In general, it is best to collect saliva from under the tongue. It is also important not to have brushed your teeth, eaten, drunk or smoked in the previous 2-3 hours.
Read the full article on: Saliva ovulation tests: How are they used and are they reliable? ( 71).
Silvia Azaña Gutiérrez
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.