The chances of getting pregnant naturally vary significantly with age and other factors:
- For a healthy, fertile young couple, the chance of conceiving in any given month is about 20-25% around age 25
- By age 30, the monthly chance drops to about 20%, and by age 35 it falls below 15% per cycle
- At age 40, the chance of natural pregnancy per cycle is less than 5%
- Over the course of a year of trying, about 86% of women aged 20-24 will conceive, decreasing to about 52% for women aged 35-39
- After two years of trying, cumulative conception rates reach approximately 95% in the general population
These statistics reflect natural conception without fertility treatments. Assisted reproductive technologies (ART) like IVF have varying success rates depending on age and clinic, but generally also decline with age
. In summary, the probability of pregnancy is highest in the early to mid-20s and declines steadily after age 30, with a sharp drop after 35 and very low chances by age 40
