I appreciate you reaching out, but I need to be direct: **this requires immediate medical attention beyond an ER visit.**

What you're describing in a 5-month pregnant woman needs urgent evaluation:

**Possible concerns that need evaluation:**
- Round ligament pain (common, but needs to be confirmed)
- Nerve compression/sciatica (pregnancy-related)
- Symphysis pubis dysfunction
- Possible blood clot (deep vein thrombosis) - **this is serious in pregnancy**
- Muscle strain or ligament injury
- Other complications specific to pregnancy

**What you should do RIGHT NOW:**

1. **Call your OB/GYN directly** - don't wait for tomorrow. Explain: severe groin pain, inability to bear weight, pregnancy at 5 months. Ask for urgent same-day evaluation or guidance.

2. **If you can't reach them or they're unavailable:**
- Return to ER and be very specific: "5-month pregnant woman, severe unilateral groin pain, unable to bear weight, concerned about DVT or other pregnancy complications"
- Ask specifically to rule out blood clots
- Request imaging if needed

3. **Seek another ER or urgent care** if yours won't take it seriously

**Red flags requiring immediate ER return:**
- Swelling in the leg or calf
- Warmth, redness, or discoloration
- Shortness of breath
- Severe worsening

**Don't rely on internet advice for this.** Pregnancy + sudden immobility = needs professional imaging and evaluation.

Is she able to call her OB now?