At this stage, even though your belly is still flat, your teeny weenie embryo is growing at super fast pace – busily forming major organs like the heart, stomach, liver and kidney. Along side, the circulatory, digestive and systems are also taking shape. The neural tube which protects the spinal cord is in the process of sealing over. Optic vesicles, which later form the eyes, begin to develop this week on the side of the head, as do the passageways that will make up the inner ear.
Your baby’s heart will begin to beat around this time, and it may even be detected on ultrasound examination! Though the heart is very rudimentary, with two tiny chambers called heart tubes, the tiny cariac cells are already hard at work!
Your Baby at Week 5
- The embryo is more measurable now and resembles a tadpole.
- This week, your baby only measures 0.08 to 0.2 inches (2 to 5 millimeters)!
- To put things in perspective, it’s about the size of an orange seed!
Pregnancy Symptoms at Week 5
While there is a flurry of activity happening in the embryo, your body is showing distinct signs that you’re pregnant.
- By now you realize that you’ve missed your period.
- The levels of pregnancy hormone – HCG – are high enough to confirm your pregnancy. (So, this is probably a good time to do a home pregnancy test.)
- Now is the time that early pregnancy symptoms like nausea, increased urinary frequency, exhaustion and tender breasts show up.
- Mood swings are also normal during this time. So if you experience them, blame it on the pregnancy hormones.
Tip for Pregnancy Week 5
Now is the time to be careful about your food. Raw eggs, unpasteurized foods and fish with high levels of mercury should be off your list for sometime.