Priya has been trying to get pregnant for the last couple of months. She is hopeful every month that she will miss her period, but is disappointed when she comes to know she did not. She has not been using any contraception also for the past 3 months. She does not seem to be getting pregnant. She approaches her doctor for some advice, about menstrual cycle, ovulation and fertility period.
Chromosomal abnormalities can occur during the crossover of the genetic material of the ovum and sperm during fertilization. The pairs of chromosomes may not connect well or may break off. This damage to the chromosomes at this stage may lead to the natural expulsion of the embryo as the pregnancy cannot proceed normally and may end in the form of an early miscarriage.