Pregnancy dating calculator
Find week by week information for pregnancy, fetal development images, ... The start of your pregnancy is actually calculated from the start date of your last menstrual period (LMP), or day 1 of your cycle.
Given this method of calculation, your pregnancy is measured in what is termed gestational weeks, as opposed to being measured from the actual day of conception.
On average only 5% of births take place exactly on the estimated due date.
Most are born within a week either side of the estimated due date.
However, if you’re being sick a lot, you may have severe morning sickness (hyperemis gravidarum) which, in severe cases, can be eased with anti-sickness medication.
It’s important to get help, because it can make you very ill and severely dehydrated.
If you deliver on your due date, your baby is actually only 38 weeks old, not 40.
If you want to, you can view a sample due date report.
Caused by hormonal changes, morning sickness is no fun, but it shouldn't affect your general health or your baby in any way.
Luckily, your body has good stores of essential nutrients to draw on.
These appear white in the image, and soft tissues appear grey.
Fluids, such as the amniotic fluid surrounding your baby, appear black.Now is the time to really watch your diet – not only to give you nutritious, energy giving foods, but also to make sure you are avoiding anything that could be harmful to your baby.