Irregular periods and trying to get pregnant

Irregular bleeding may reflect ovulation that is late, infrequent, or absent. Causes include polycystic ovary syndrome, thyroid or other hormone changes, major changes in weight or exercise, perimenopause, and premature ovarian insufficiency. Anovulation means an egg is not released during a cycle. Irregular periods do not prove that you cannot conceive, and they do not identify one cause by themselves.

Record bleeding dates, cycle symptoms, medicines, and any ovulation signs. Have sex regularly through the cycle if that suits you, rather than relying on one predicted fertile day. Arrange a preconception appointment to review health conditions, medicines, vaccinations, and supplements. A clinician may assess ovulation, thyroid function, hormone patterns, ovarian reserve, and other fertility factors; your partner may also be offered assessment. Treatment depends on the cause and can include ovulation support. Metformin for PCOS may be discussed in selected situations, while the Combined Pill prevents pregnancy and is not a fertility treatment.

Arrange a medical review if periods are very far apart, stop, become unusually heavy, or come with significant pain, milky nipple discharge, new facial hair, or hot flushes. Seek care sooner if pregnancy is possible and you have one-sided pain, fainting, or unusual bleeding. Do not wait for cycle timing to become predictable before asking for help if you are concerned about fertility.

How can we check whether I am ovulating? Which tests fit my cycle pattern? Could PCOS, thyroid disease, perimenopause, or ovarian insufficiency be involved? When should my partner have an assessment? Which treatment is appropriate if ovulation is infrequent?