Your belly is growing and it is likely starting to show now. Not everyone may notice, but you will certainly notice the change in your body.
The uterus is now as big as an orange and bulges from the lower part of the belly. If you don’t notice any of these physical changes, there is nothing to worry about. Everyone carries their pregnancy differently. Differences in how your belly grows can be dependent on whether this is your first pregnancy or not. If you have been pregnant before, there is a strong possibility you might start showing earlier, but once again - everyone is different and there is no 'right or wrong.
Blood vessels on your skin are a lot more visible whilst veins on your arms begin to pop out frequently. This is due to the additional volume of blood, which increases by up to 40% during pregnancy. Why? To provide your baby with all the nutrition it needs.