Calculate Your Due Date: Conception Date & Pregnancy Timeline

Question
well my baby is due on the 18 dec 2007 i wanted to no what date i conceived my unborn baby on cause i aint got a clue how to work it out many thanks

Answer
Assuming this due date of 18 Dec 2007 is correct, you would have conceived your baby on 27 Mar 2007.  Remember, though, that due dates that are not calculated from a known ovulation date may not be accurate.  If your due date was calculated based on your last menstrual period (LMP), it is probably wrong.  However, if your due date was calculated using an early, first trimester ultrasound, it is more likely to be accurate.