Table 2.

Proportion of completed symptom diaries in each week of pregnancy, dated from ovulation

Week from ovulation	1	2	3	4	5	6	7	8
Participants, n	2	195	249	254	242	225	141	7
Proportion of sample population, %	0.8	76.2	97.3	99.2	94.5	87.9	55.1	2.7