It is possible to get pregnant at 46 years old with irregular periods, as long as menstruation is occurring it means that an egg can be formed and pregnancy is possible.
Pregnancy is the combination of sperm and egg to form a fertilized egg and its implantation in the uterus, therefore, regardless of regularity of menstruation, as long as one is able to menstruate, it means that the organism is still able to produce an egg. The combination of egg and sperm to form a fertilized ovum and its attachment to the uterus is the early stage of pregnancy.
However, at 46 years old, irregular menstruation is usually in the peri-menopausal period, and hormone secretion is unstable, so pregnancy may cause unstable growth and development of the fetus. Therefore, if you are planning to get pregnant, it is advisable to consult your clinician if treatment is needed. If a woman is 46 years old and has no plans to get pregnant, she should still be careful to use contraception during sex to avoid the risks of unwanted pregnancy to her health.
In case of irregular menstruation, it is recommended to consult a clinician in time for a complete examination to clarify the cause of irregular menstruation and prevent adverse effects on the body.