Welcome to HCm.The majority of women of reproductive age ovulate almost every month. Many women will however have an occasional anovulatory (not ovulating ) cycle which may be due to significant stress, severe weight changes, or secondary to a benign tumor
in the pituitary gland
that produces an excess of the hormone prolactin
which can interfere with ovulation. There is also a condition known as Polycystic Ovarian Syndrome
that some women have due to an imbalance of hormones that leads to persistent failure to ovulate.Take care.