You’ve just been initiated to the pregnancy club! Week 5 is a common time for moms-to-be to find out they’re pregnant. That’s because by now you’ve probably realized you’ve missed your period and then thought, Whoa… maybe I should take a test! Plus, at 5 weeks pregnant, heightened hormone levels may be giving you symptoms that are tough to ignore, like sore breasts, nausea, and fatigue. (Those same hormones are the ones your pregnancy test detected to give you a positive result.) Okay, so the “club” might not be so fun right now, but you’ll eventually be so glad you were a member. Just give it, oh, about eight more months.
How Big Is Baby at 5 Weeks Pregnant?
At 5 weeks pregnant, baby is the size of an apple seed. Yep, your embryo is now measurable—though at week five of pregnancy, it's a wee 0.13 inches from crown to rump (a.k.a. head to bum)—and baby's gearing up for much more growth. In fact, in the next week, he or she will almost double in size. Grow, baby, grow!
5 Weeks Pregnant Is How Many Months?
5 weeks pregnant is about one month pregnant. Yep, you just discovered you’re pregnant and you’ve already got one month in the books. That’s because most doctors start counting pregnancy from the first day of your last period. Only eight months to go!
The pregnancy symptoms you feel at five weeks are just the beginning of the slew of changes your body is about to go through. No need to dread the entire pregnancy based on what’s happening right now: many moms-to-be say the first trimester is the toughest, so think of it as getting the rough stuff out of the way early. In the meantime, take care of yourself and get plenty of rest, eat right, and figure out ways to help yourself feel better. If you’re wondering what to expect at 5 weeks pregnant, here’s what’s most common:
Some moms-to-be who are 5 weeks pregnant feel no symptoms at all. Or it might feel like, at 5 weeks pregnant, symptoms come and go. And all of that is totally okay! Just because you’re not feeling sick or sore doesn’t mean there’s something wrong with the pregnancy. It just means you’re lucky!
At 5 weeks pregnant, your belly may look unchanged—or you may be a bit bloated or feel like you’ve already gained a pound. Heck, you might feel so sick that you can’t eat and worry you could have lost a pound. All those scenarios are considered perfectly normal and totally okay! All pregnant women are different and how their bodies change throughout pregnancy varies widely.
You’re probably starting to wonder a bit about overall pregnancy weight gain. The short answer is: You don’t need to worry too much about it yet. Doctors only recommend gaining a few pounds (1 to 5 to be exact) during the first trimester (which ends after week 13), and that will probably happen without you thinking too much about it.
The long answer is that you will need to gain weight.
Your doctor will discuss personalized weight gain recommendations with you—know that they vary based on body type. Here’s what the American College of Obstetricians and Gynecologists (ACOG) recommends:
If you’re underweight (BMI under 18.5):
If you’re of average weight (BMI of 18.5 to 24.9):
If you’re overweight (BMI of 25 to 29.9):
If you’re obese (BMI of 30 and above):
If you’re 5 weeks pregnant with twins:
Wondering if you could be 5 weeks pregnant with twins? If you were, you probably wouldn’t know it yet, though as we mentioned above, some twin moms swear they had worse morning sickness. They also may gain weight more rapidly and “start to show” earlier than women having one baby would.
5 weeks pregnant is a good time ask your partner for a massage. You might not have a big bump, but at five weeks pregnant, your body is working fast and furiously to grow baby, so you deserve a little TLC, right?
Your week-5 embryo doesn't look like much more than a tadpole right now, but he or she's already starting to form major organs—heart, stomach, liver, and kidneys—and systems—digestive, circulatory, and nervous).
If you don’t have a medical history that puts you at higher risk for pregnancy complications, you won’t likely have a 5 weeks pregnant ultrasound. Instead, your OB will probably have you make an appointment for your first prenatal visit around week 8 or 9. And you’ll just have to wait impatiently. We feel your pain—sorry!
When you do have your first ultrasound, the doctor or technician will measure baby from crown to rump and could adjust your due date based on baby’s size (which would change which week of pregnancy you’re in). You’ll have a slew of blood tests and urine tests to be sure you and baby are both doing fine.
So while you’re totally amped up to see baby’s tiny fluttering heartbeat on the ultrasound screen, remind yourself that you can wait a few weeks for the blood draws and peeing in a cup. Welcome to the club!
Reminders for the week: