Though age is just a number , it has it’s importance. We can be positive and maintain a healthy life style to decrease the impact of ageing . The single most common reason associated with decrease in number and quality of eggs in females is the adverse impact of ageing . 35 years might not be old in general terms but for reproduction it is a significant number . The female fertility declines fast after this age . Not just fertility but also there is drastic increase in rate of miscarriages . These miscarriage rate increases as the cells start dividing genetic matter abnormally leading to chromosomal abnormalities like Down’s syndrome etc . Nature tries to get rid of such pregnancies which aren’t healthy . If nature doesn’t get rid of it, on the detection of abnormality in antenatal period termination of pregnancy is suggested.
If your social circumstance force you to wait longer you have the option of getting your egg or embryo frozen to be used at later date when you are mentally ready . This process isn’t as efficient as natural conception but it certainly is a boon for women who have to defer their pregnancy to later age or who need to undergo Chemotherapy for any cancer treatment . For Male fertility the effect isn’t as drastic as on females but it goes without saying the oxidants in nature compromise the Male sperms as well.