Had unprotected sex on day 14 of my cycle - how likely is it that I'm pregnant? Period not due til the weekend and no real symptoms to speak of (well, have a few but sure I'm imagining them!). Can I test now? Would there be signs already? Also, the worse thing is that I've drunk on several occasions and have had a few cigarettes in the last 10 days since day 14 plus have taken valium/diazepan (for flying)plus have eaten blue cheese, as it only occured to me in last few days that I could be pregnant so terrified that if I am I've damaged the baby.