Hi, Thanks for posting in HCM. I understand your concern. It is very difficult to say weather spotting what you are experiencing is due to UTI or miscarriage. Urinary tract infection can cause bleeding when there is mucosal injury in urethra. But, since you are on treatment, such spotting should subside early in response to treatment. In the meantime, drink good quantity of water and citrus fruit juices. Take adequate rest and avoid strenuous physical activity. You can get your blood checked for beta-HCG levels now and after 2 weeks. It should have increased by 2 weeks, which indicates the pregnacy has been progressing. Also you can get a trans-vaginal ultrasound scan (TVS) after 2 weeks to know the status of pregnancy. In case the spotting continues despite taking measures, you need to immediately consult Gynecologist for appropriate management. Hope the information provided would be helpful. All the best.