A fertility tester (1) comprising a circular disc (19) having a top, a bottom, a plurality of at least partially transparent regions (23) concentrically disposed therealong, and a plurality of indicia (25) corresponding to said transparent regions, each of which identifies a day of a woman's menstrual cycle, a support means, on which said disc is rotatably mounted, masking means fixedly mounted relative to said support means and covering a portion of said disc thereby preventing viewing of said disc thereby preventing viewing of some of said transparent regions, said masking means further having an opening through which at least one of said transparent regions is exposed for enabling a woman to place her saliva thereon, said disc being rotatable relative to said masking means whereby any one of said transparent regions may be exposed, and magnifier means (51) mounted on said support means at a viewing position for providing an enlarged view of the saliva on one of said transparent regions, said masking means exposing the indicium corresponding to said one of said transparent regions both when it is at said opening and at said viewing position. 2374 ד' בשבט התשס" א - January 28, 2001
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