Yes, after the age of 30 it starts to get hard to get pregnant, especially from the 35 years due to the decrease in the number and quality of ovules. This is because women are born with a limit to the number of eggs that they will produce throughout their lives. This number decreases progressively, as time goes by and the eggs are released, until the woman's ovarian reserve comes to an end with menopause.
At age 25, the woman has lost more than 70% of her eggs and by the time she reaches 30, more than 80% of them are gone. At age 35, she has less than 10% of her ovarian reserve.
O peak female fertility it's to the 25 years, when the chances of pregnancy are 25% per month. Between the ages of 26 and 30, the probability is about 18% per month. From 31 to 35 it decreases to 15% and that percentage starts to fall steadily from the age of 35. When she reaches 40, a woman has less than a 5% chance of getting pregnant every month.
This is why it is often said that ideal age to conceive is until the age of 30, because the fertility of the woman has not yet regressed with age and the risk of malformations is also lower.
Ideally, the woman should consult her gynecologist for laboratory tests and a general assessment of her state of health before becoming pregnant.
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