YOU ARE NOT PHYSICALLY PREGNANT YET
You are not actually pregnant yet but soon will be.
The pregnancy calendar begins before you are pregnant.
Pregnancy weeks are counted from the First Day of the Last Menstrual Period (LMP) because the LMP date is more likely to be known than the date of conception.
Pregnancy lasts about 40 weeks (280 days) from LMP. These 40 weeks include approximately two weeks (from LMP to conception) when you are not yet pregnant.
14 days after First day of period = Approximate conception date
266 days after Conception date = Estimated due date
280 days after First day of period = Estimated due date
Your body is preparing to ovulate early next week. Have sex regularly this week because the days before ovulation, along with the day you ovulate, are your most fertile days.
Once you ovulate, a waiting sperm can then fertilize the egg that has just been released. Fertility drops rapidly once ovulation occurs so be sure to have sperm ready for the soon to be released egg.