I would definitely retest, as Austin said Menopause will not cause a positive pregnancy test... You should test as soon as possible so your able to get the best care possible... If I understood your post correctly this coming period will be the second one missed? I would find out as soon as possible so your able to get the best prenatal care. No need to wait another month, grab a test! Good Luck!
menopause can not cause a positive pregnancy test and a light positive is still a positive so you should definitely retest good luck