Originally Posted by
tryintoconceive
If i ovulated on the 3rd day of February, had sex the day of and day before, could the egg be fertilized and attached to my uterine lining yet?
Actually, no. It takes about 3 days for the sperm to travel up through the vaginal canal, through the uterus and up into the fallopian tube where the egg is fertilized. Once fertilized, it then takes almost another week for the zygote to travel back down the fallopian tube and into the uterus where it then takes about 48 hours to begin attaching to the uterus and making the placenta.
You are possibly just experiencing pre-menstruation cramps if your period is due soon.