Week 11 of pregnancy

Your baby this week

About 4.38 cm (crown-rump length; Source: INTERGROWTH-21st (Papageorghiou et al., 2014)) — about as long as a Ber (Indian plum) (Source: 'Fruit properties during the harvest period of eleven Indian jujube (Ziziphus mauritiana Lamk.) cultivars', Saudi J Biol Sci 2021, Table 1: fruit length 23.00–44.75 mm across 11 cultivars). Every baby grows a little differently.

How your baby is developing

• The fetus can typically open and close its fists.UNSW Embryology (CC-BY)
• Tooth buds are forming beneath the gums, and external genitals begin to develop, though sex is not yet reliably visible on ultrasound.UNSW Embryology (CC-BY)

How you may feel

• The uterus is typically rising up out of the pelvis; some notice slight lower-belly firmness.ACOG
• Energy levels may start to improve for some as nausea eases.NHS

Nutrition this week

• Folate (B9) — supports neural-tube closure — most critical in weeks 1–12 (Leafy greens)
• Iodine — fetal brain + thyroid development (Iodized salt)
• Vitamin B12 — with folate, for blood + nerves (Meat)

Tests & scans

• Nuchal-translucency + combined first-trimester screen (weeks 11–14)

When to reach out

• Heavy vaginal bleeding or passing clots.ACOG
• Severe or persistent abdominal or pelvic pain.ACOG
• Severe, persistent nausea or vomiting that prevents keeping any fluids down (possible hyperemesis gravidarum).NHS
• Fever of 38°C (100.4°F) or higher, or chills.WHO
• Severe dizziness, fainting, or a racing/irregular heartbeat.NHS
• Pain or burning when urinating (possible urinary tract infection).NHS

These apply to this week specifically. See the full list of urgent warning signs the CDC publishes for pregnancy and the year after birth.