Hello dear
Understand your concern
First of all do blood hcg level to confirm
pregnancy taht is very sensitive than Urinary pregnancy kit.
Other causes may be:
Vaginal infection: need proper examination and laboratory test (most commonly yeast infection)
Ovarian cyst, excessive stress, irregular eating habits,
hormonal imbalance, thyroid problem, excessive weight gain/loss,
dysfunctional uterine bleeding.
Consult the gynecologist for diagnosis and do following tests:
Pelvic examination, USG lower abdomen,
complete hormone profile: FSH, LH, P, E2,
prolactin, Tetosterone
thyroid profile,
blood sugar
Advice:
Take plenty of fluids
Proper rest
Healthy diet with vitamin supplements
Wear pure cotton loose inner wear
Wash vagina with warm salted water
Maintain hygiene after and before urination and sex
Avoid stress
Start exercise regularly
Hope this may help you
Best regards
Dr. Sagar