What is the maximum age for a woman to give birth?
In the realm of reproduction, age plays a significant role, particularly for women. As we delve into this topic, let's explore how age affects a woman's fertility and the chances of carrying a pregnancy to term.
Women are born with a vast number of eggs, typically between 300,000 and 500,000. However, as women age, the number of eggs decreases. By the age of 37, the number drops to around 25,000. This decline in egg count affects the chances of conceiving naturally.
For women under 30, the likelihood of getting pregnant after a year of trying stands at 85%. This figure drops as women age. For women between 30 and 35, it's 75%, while for those between 35 and 37, it's 24%. The chances further decrease for women between 38 and 40, standing at 16%. By the age of 40, only 1 in 10 women will get pregnant each cycle. For women 43 and older, it's 3%.
Pregnancy is possible during perimenopause, a period when cycles become longer and less regular, which typically begins in a woman's mid-40s, although some may experience it as early as their mid-30s. However, achieving pregnancy during this phase is more challenging.
As women age, the quality and reserve of eggs also diminish. By the age of 51, the number of eggs is typically 1,000 or fewer. Consequently, the majority of women over age 45 can't conceive without the help of IVF and other ART procedures.
Despite the challenges, it's important to note that any woman of any age can get pregnant with medical help, provided that she has a 'normal uterus' even if she no longer has ovaries or ovarian function. However, the success rates of live births through ART also decrease with age.
For instance, the probability that a 45-year-old woman achieves a successful pregnancy without medical assistance is extremely low. With treatment, the chances for live birth are under 1%. Spontaneous pregnancy rates at this age are rare and not precisely quantified, but they are understood to be minimal.
In conclusion, while age can impact fertility, it doesn't mean that pregnancy is impossible. With the advancements in medical technology, women, regardless of their age, have options to explore when it comes to starting or growing their families. It's always recommended to consult with a healthcare professional for personalised advice.