Week 9: Embryo Becomes Fetus
Baby is about the size of Grape (23mm)
The embryonic tail disappears—officially transitioning from 'embryo' to 'fetus.' The placenta takes over hormone production from the corpus luteum. Basic physiological structures are in place; now they must mature.
The placental transition may cause a temporary hormone surge. Breast tenderness may peak. Increased vaginal discharge (leukorrhea) is normal.
What is important now
Ask about NIPT—a blood test that can screen for chromosomal abnormalities and determine fetal sex.
Common symptoms
- foul smelling discharge — contact provider
Wellness this week.
Nutrition
Placental support
- Continue prenatal vitamin with iron
- Vitamin C aids iron absorption
- B6 may help nausea
Exercise
Movement
Continue moderate exercise as tolerated
Sleep
8-10 hours
Position: Any comfortable position; begin favoring sides
· Consider a pregnancy pillow
Mental wellness
Mindfulness
Decisions about genetic screening are personal.
“The transition from embryo to fetus is a major milestone.”
Your timeline.
Week 6
3 weeks ago- routine
Checkpoint 1 — Mutterpass may be issued upon heartbeat confirmation
Week 9
This week- routineWeeks 9–12
Checkpoint 1 — Screening Ultrasound
Week 19
In 10 weeks- routineWeeks 19–22
Checkpoint 2 — Screening Ultrasound
Choice between a basic biometric scan or detailed organ scan. Measures head circumference, abdominal circumference, femur length, and checks placental position.
GoalAssess fetal anatomy and growth, check for structural abnormalities, and verify placental location.
Week 28
In 19 weeks- routine
Checkpoint 1 — GDM screening
- routine
Checkpoint 2 — Rhogam if Rh-negative
Week 29
In 20 weeks- routineWeeks 29–32
Checkpoint 3 — Screening Ultrasound
Third and final routine ultrasound. Assesses fetal growth, position (cephalic/breech), amniotic fluid volume, and placental function.
GoalConfirm appropriate growth trajectory and baby's position for delivery planning.
Week 35
In 26 weeks- self pay igelWeeks 35–37
Checkpoint 1 — GBS Testing — Self-pay/IGeL
Rectovaginal swab to screen for Group B Streptococcus colonization. If positive, IV antibiotics are given during labor to prevent neonatal infection.
GoalIdentify GBS carriers to enable prophylactic treatment during delivery.
Safety: Increased clear/white discharge is normal. Foul-smelling discharge warrants evaluation.
Your journey, your rhythm.
Track your pregnancy week by week with gentle, personalized guidance.