It depends on how much time you are referring to. The uterus is down behind your pubic bone for the first 12 weeks. After that it will be detectable low in your belly and should be growing up at a rate of 1 cm per week. (At 14 weeks it will be 2 cm above the pubic bone). At 20 weeks the fundus (top of the uterus) should be at your bellybutton.
Many first time moms don't really start growing "out" or "showing" until late second or early third trimester. As long as it is growing up according to schedule, it should be fine. If it is not meeting the growth pattern, your doctor or midwife should be getting regular ultra sounds to monitor the baby.
Generally from the ultrasound, when there is more than one baby. However, before the ultrasound there can be some indicators, such as pregnancy symptoms being stronger than normal or your abdomen getting bigger earlier on in the pregnancy than it usually would
A recent weight gain could be the reason other than pregnancy that your breasts have begun to get bigger.
A miniature pinscher that is pregnant will show signs of the pregnancy when the teats begin getting bigger. This usually begins around the eighth week of pregnancy.
You have a tumor or you ate too much. Maybe both.
The pregnancy itself does not start showing until around 3 months, but many women have constipation and/or gas which bloats the tummy and makes you look bigger.
No you cannot as your baby is protected by a sac which is full of fluid. This protects your baby from harm during your pregnancy. However you may be able to feel a hardness in the lower part of your abdomen but this is the uterus itself. At 16 weeks your baby is no bigger than a stick of butter, also it is not wise to push hard on your abdomen when you are pregnant.
the process of expansion is something getting bigger
A missed period and positive pregnancy test are signs of pregnancy. Take a pregnancy test.
A Telescope
well you can determine your hamsters pregnancy week by week because you will notice it drinking lots of water and the belly will begin getting bigger
an example of growth is the changing of which something is small and is getting bigger.
expand means when something is getting larger