13 Weeks Pregnant: Your Baby’s DevelopmentThis week, your little one’s organs are fully formed and are hard at work! The kidneys are starting to produce urine and release it into the amniotic fluid, and the spleen is busy producing red blood cells, which carry oxygen throughout the body. Your baby's intestines have moved back into the abdomen from the umbilical cord, now that there’s enough room to accommodate them, and some of the larger bones, including those of the skull, are beginning to harden. What else is happening with your baby? Even though you won’t hear those tiny coos and cries until after you give birth, your baby’s little vocal cords have already started to develop. If you’re 13 weeks pregnant with twins, read more about your babies’ development in our weekly twin pregnancy overview. Show
The Size of the Fetus at 13 Weeks PregnantAt 13 weeks, your fetus is about the size of a large plum or a small peach. It can be hard to imagine exactly what’s going on inside your belly. Check out the visual below to get an idea of how your little one is looking. Mom’s Body at 13 Weeks PregnantYou’ve just about made it to your second trimester, which many moms-to-be describe as the honeymoon period of pregnancy. The discomforts you may have experienced in the first trimester — fatigue, nausea, and frequent urination — often ease up a bit, and you may even feel a surge of energy during this trimester. By this stage, your blood supply and flow are fully linked to the placenta, which will continue to grow as your pregnancy progresses. By the time you give birth, the placenta may weigh about one and a half pounds. At your upcoming prenatal appointments, your healthcare provider may monitor your fundal height -- the distance from your pubic bone to the top of your uterus (the fundus). This measurement helps your provider determine how your baby is doing by measuring the size of your growing uterus. Breast tenderness may continue on and off, and other issues like constipation, bloating, and heartburn are normal at this stage, too, as your increased hormone levels can slow down digestion. Learn more about prenatal health, fitness, nutrition, and more in our downloadable Pregnancy Guide. 13 Weeks Pregnant: Your SymptomsAt 13 weeks pregnant, here are some of the symptoms you may be experiencing:
13 Weeks Pregnant: Things to Consider
13 Weeks Pregnant: Ask Your Doctor
13 Weeks Pregnant: Your Checklist
How many weeks is 4 months pregnant?What Happens at 4 Months of Pregnancy? 16 Weeks Pregnant.
Does 13 weeks mean 3 months?13 weeks pregnant is how many months? At 13 weeks pregnant, you're three months pregnant, although doctors track pregnancy by week, not month. This is the last week of the first trimester.
Is week 13 first trimester or second?Week 13 – your 2nd trimester. You are now a 3rd of the way through your pregnancy and you're hopefully through the worst of your symptoms.
Is the baby fully formed at 13 weeks?Your baby is now fully formed and looks much more like a human being. They are about 7.5 cm long — about the size of a peach — and weigh about 30g. They are moving about vigorously in your uterus and they can move their arms and legs, suck their thumb and form a fist.
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