Chance of conception
Of those who do not conceive in the first year, about half will do so in the second year (cumulative pregnancy rate over 90%).
Fertility rates reduce with increasing maternal age
Cumulative probability of conceiving a clinical pregnancy by the number of menstrual cycles varies with respect to age of woman
Cumulative probability of conceiving a clinical pregnancy by the number of menstrual cycles attempting to conceive in different age categories (assuming vaginal intercourse occurs twice per week)
Age category (years) | Pregnant after 1 year (12 cycles) (%) | Pregnant after 2 year (24 cycles) (%) |
19-26 | 92 | 98 |
27-29 | 87 | 95 |
20-34 | 86 | 94 |
35-39 | 82 | 90 |
Inform people who are using artificial insemination to conceive and who are concerned about their fertility that:
Frequency and timing of sexual intercourse or artificial insemination
Reference:
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