Tzeadim › Pregnancy · Second trimester

Exposures, travel & driving · Safety

Preterm labour signs (20–37 weeks)

What it is

Regular tightenings, period-like cramps, pelvic pressure, low back ache that comes in waves, watery or bloody discharge — go to the maternity ER; early treatment works.

every day · from week 20 · until week 37

Sources

• Guidelines for Perinatal Care, 8th edition — ACOG / AAP · checked 02-09-2026

Last reviewed 01-09-2026 · Confidence: high

Compiled with AI assistance from the public sources listed above. Not yet reviewed by a clinician — check anything important against the source, with Tipat Halav or with your doctor.