Hello Thanks for writing to us with your health concern. Any kind of menstrual bleeding that deviates from the normal could be a miscarriage. Right now, if you have already miscarried, even a pregnancy test would not be reliable. Please go for a pelvic transvaginal ultrasound scan - that will tell you if you miscarried. Also, the altered bleeding could be due to - anxiety, stress, weight gain, late nights, erratic eating habits. A cervical erosion or polyp or uterine fibroid also can present this way. T o know the cause please have a formal gynecological check up - per vaginum and per speculum internal evaluation plus a scan. Also, hormonal levels - FSH, LH, TSH, Prolactin. ANxiety, weight gain, late nights, erratic eating habits - all these too can cause irregular bleeding. Do not worry too much. All the best. Take care.