Thanks for the query.
If you had unprotected intercourse
around the time of ovulation then there is possibility of pregnancy
Urine pregnancy test kits sometimes may not give accurate results in early pregnancy.
We cannot confirm or rule out pregnancy by considering the pink discharge.
So you once go for blood test
for pregnancy, which will can give more accurate result compared with urine test.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429