Thanks for writing to us.
Brown discharge, cramp with sore breast and late period needs to be concerned. Late conception should be ruled out in this case.
Common symptoms of pregnancy:
a) Missed period, nausea, vomiting, tender and swollen breast.
b) Increased frequency of urination, fatigue, food craving.
c) Slight vaginal spotting, cramping, mood swing, constipation
I suggest you to undergo one blood test
for beta-hCG and Trans Vaginal ultrasound
scan to rule out underlying pathology or product of conception.
Other reasons are endometriosis
, old blood, endometrial tissue, hormonal imbalance, stress/ depression, vaginal/ pelvic infection
Please consult with gynecologist for complete health check up with relevant investigation. Take proper medication if required.
Maintain genital hygiene. Avoid mental stress. Practice safe sex in future.
Hope, I have answered your query. Good luck and take care.