Thank you for your question.
At your age anovulatory cycles are very common i.e. cycles where a lady does not release eggs from the ovary. When that happens irregularities in periods are very common.
So I would recommend that you should have an estrogen
, FSH and LH level.
You may be near your menopause
or in the premenopause which is why you may be having these irregularities in your periods.