How many menstrual cycles can you miss due to amenorrhea before becoming infertile?

Seek expert help: Effective treatments are available for most forms of amenorrhea, and a woman with amenorrhea should seek help from an expert if she is trying to conceive. The broad categories of amenorrhea are: lazy pituitary - not enough stimulating hormone ovarian insufficiency - low egg number uterine problems - cervical blockage or endometrial insufficiency the source of amenorrhea can be treated.

Addendum: I agree with dr chenette, but would just add that, in direct answer to your question, there is no maximum numbe of cycles you can miss beyond which you will become infertile.

Depends: Infertility is defined by a couple with unprotected sexual intercourse for more than one year without pregnancy. Or six months for women over 35. For someone like you with irregular period, or amenorrhea, it depends on the cause of amenorrhea. I suggest to see a fertility doctor and do some tests.