Other causes of brownish discharge are hypothyroidism, cervical dysplasia, cervical polyps, cervicits (inflammation of cervix), vulvovaginitis (inflammation of vulva and vagina), cervical and
uterine cancer,
uterine fibroids, hormonal imbalance, genital ulcers, STDs and stress. You can discuss these possibilities with your gynecologist as on net and without examining it is difficult to give a confirmed opinion. A PAP smear and a STD panel must be done too along with a pregnancy test. Take care!