Your calculated period due date will be 17th February. Late period with red clumpy discharge has some possibilities like early sign of miscarriage
imbalance with co-existence of old endometrial tissue.
Therefore, you should undergo one home pregnancy
test with urine initially to check pregnancy status. One blood test
for beta HCG & TVS scan is required to confirm product of conception.
After that, you can consult with gynecologist for next line of investigation & management. For direct consultation with me, you may visit my profile on http://www.healthcaremagic.com/doctors/dr-soumen-patra/63326. Here, you can upload image for more suggestion.