Hi! My boyfriend and I had a unprotected sex on my second day of cycle last Sept.28 but he pulled out. However, I had a vaginal bleeding,color brown and red but not clot on my 21st day of cycle. What are the chances of getting pregnant? By the way, Im taking medication such as antibiotics. Im also stressed and scared and I noticed that my discharges are creamy and thick. Is this an early sign of pregnancy? I had 28 days cycle before I started to menstruate last Sept 27 and then I had 27 days last August. What are the causes of delayed period?Im 18 years old. Pls reply! Thank you!