Hi we are planning for baby and had sex on 2 days before my ovulation day, means my ovulation time was on 5th october 2012, as randomly calculated. and after 5 days I started feeling head ache and slight cramps in my pelvic region, and also craving for food,..and very sensitive to some smells, and also my vagina discharging watery like fluid with some odour. Are these pregnancy symptoms? (my last period was on 19th of september 2012)