Hello dear, Understand your concern. In presence of light period, pregnancy is unlikely. But sometime pregnancy kit give false result so repeat after 7 days to confirm or you can do blood HCG level that is very specific than UPT. Following are the reason for late periods: 1. High level of stress 2. Change in life style 3. Late ovulation 4. Excessive exercise 5. Drugs: Birth control pills, tyroid medication, Excessive tea and caffeine 6. Thyroid problem 7. Hormonal imbalane: Also note that Menstruation required co ordinate action of various hormone that secreted by ovary (estrogen and progesterone) and brain (FSH and LH). If any above hormone is decreased or increased there is imbalance in menstruation. Following are the cause of breast soreness: 1. Most common-Hormonal imbalance : High /lack of estrogen and progesterone 2. Breast cyst 3. Breast cancer 4. Breast trauma 5. Breast size 6. Excessive stress 7. Alcohol and caffine use So please do full hormonal profile : Estrogen, progestron, LH, FSH, HCG and thyroid hormone. That help to diagnose hormonal imbalance. After confirmation you can take treatment according So please go ahead. 1. Life style cahnges - 30 min regular walk - Wear supportive pad bra - use of Ice pack - Relaxation excercise: breathing technique - Low fat diet - High fiber intake - Decreased salt intake - Multivitamin intake - Reduce alcohol and caffine 2. drug: Hormonal replacement therapy after doctor consultation Macafem: It is non estrogenic herb-induce ovary to produce hormone 3. Gentle massage with prime rose oil 4. Acupuncture therapy 5. Maintain hygiene in pelvic area, wear pure cotton loose innerwear Hope this may help you. Best regards Dr. sagar Hope this may help you All the best. Stay healthy.