All women are different and will experience this transition at different times. Most women start to notice perimenopause symptoms in their 40s. But perimenopause can happen a little earlier or later, too. Perimenopause symptoms start about four years before your final period. “Menopause, otherwise known as ‘the change,’ is a time in a woman’s life when she no longer gets her period,” said Patricia Katzenmoyer, CRNP, of UPMC Devine Mercy Women’s Health. “The natural transition into menopause can begin years prior, however. This is known as perimenopause and can begin as early as your 30s.”