Hello dear Understand your concern. Yes missing period, vomiting and spotting are the sign of potential pregnancy. But you should confirm it by Blood HCG or By USG that is more sensitive than urinary pregnancy kit. Other cause may be hormonal imbalance, excessive stress, thyroid problem, endometriosis , adenomyosis, ovary dysfunctions. So if period will not ccome, consult the gynecologist and get the following tests done: Full hormonal analysis, USG, Ovarian follicle study to diagnse above cause. Take following advices: Relaxation exercise and musical therapy Do regular walking and exercise. Eat healthy diet Avoid excessive tea and caffeine Hope this may help you Best regards Dr. Sagar