Table 1.

Number (%) of specimens that were detectable for Y-chromosome by number of postcoital days and Menses/Non-menses phase of study

	Non-menses cycle		Menses cycle
number of days post coital	N	%	N	%
1	39	86.7	39	86.7
3	22	48.9	16	35.6
5	16	35.6	10	22.2
7	8	17.8	6	13.3
9	6	13.3	6	13.3
11	10	22.2	11	24.4
13	10	22.2	1	2.2