In the first two weeks of pregnancy, your body prepares for ovulation and fertilisation. At this time, the uterus, or ‘endometrium’, begins to thicken in order to hold and protect the embryo. Blood supply to this part of the body will also increase to meet the needs of the fetus, which is beginning to grow in the uterus.
Your ovaries release a developed egg; if you are to have twins or triplets, this is when the egg will divide. If not, a single egg is sent down the fallopian tube.
Even at this early stage, you may feel changes in your body and your emotions. You may have sensitive breasts and stomach, and you may experience nausea, although this usually begins at around week six.