Hallow Dear, If you have used condom correctly and it had not burst, the chances of pregnancy are very rare since condom is a having a good success rate in preventing the pregnancy. The day on which had sex is fairly near the Fertile Period which is about a week around the day of ovulation. However, you have delayed menses for a week. So you have to find any evidence for pregnancy. I would advise you to confirm the status of pregnancy by pregnancy test on overnight first morning urine sample. Alternatively, you may opt for Beta hCG test. Either of these test will give you the evidence of pregnancy. Then you may take further decision. You have milky discharge from vagina. You may be having some vaginal infection like Trichomona or Yeast. The former is treated with Metronidazole while the later by antifungal medicines. Please report this to your Gynaecologist. I hope this helps you. Dr. Nishikant Shrotri