Here are a quick rundown of your fertility when you are trying to conceive (TTC) according to the incredibly helpful ASRM guide Optimizing Natural Fertility:
20% – 37% The chance of conception for young fertile couples (YFC) during their first 3 months of TTC.
80% The chance of conception for a YFC during their first year of TTC.
90% The chance of conception for a YFC during their first two year of TTC.
9.4% The chance of conception for a YFC from a single episode of sex on cycle day (CD) 12.
3.2% The chance of conception for a YFC from a single episode of sex on CD 8.
< 2% The chance of conception for a TFC from a single episode of sex on DC 21.
Age 50 The year that male fertility starts to decrease appreciably.
5 days An abstinence interval that may start to negatively affect sperm counts
37% The chance of conception (CoC) associated with daily sex during the fertile window for a YFC.
33% The CoC associated with sex that occurs every other day during the fertile window for a YFC.
15% The CoC associated with sex that occurs once a week during the fertile window for a YFC.
50% The percent of time that women who monitor their cycles are able to accurately predict ovulation.
38% The rate of pregnancy when sex occurred on the day of peak mucus (EWCM).
15-20% The rate of pregnancy when sex occurred on days before or after peak mucus (EWCM).
< 60 seconds The time it takes for sperm to be found in the cervical canal after ejaculation.
2x The increase in the time to conception if the female partner has a BMI over 35.
4x The increase in the time to conception if the female partner has a BMI under 19.
60% Increase in the relative risk of infertility due to smoking.
60% Increase in the relative risk of infertility due to drinking more than 2 drink per day.
70% Increase in the relative risk of infertility due to illicit drugs.
We hope these numbers help you make the right choice for you and your fertility!