**Core Concept:** Intrauterine Contraceptive Device (IUCD) pregnancy is a rare but potentially serious complication. The IUCD can interfere with normal fetal development, cause infection, or even perforate the uterus. The tail of the IUCD can be visualized during a transvaginal ultrasound, indicating its presence in the uterus or abdomen.

**Why the Correct Answer is Right:**

The correct answer is **D**. The tail of the IUCD should be removed immediately to prevent any potential complications. Extracting the IUCD under ultrasound guidance is safe, effective, and minimally invasive. This ensures proper placement and avoids perforation of the uterus.

**Why Each Wrong Option is Incorrect:**

A. Removing the IUCD immediately is the correct action, not "checking the pregnancy status". Checking the pregnancy status should be done after the IUCD is removed.

B. Providing bed rest is not a valid medical intervention for an IUCD pregnancy. The tail of the IUCD should be removed under ultrasound guidance.

C. Offering a blood transfusion is not relevant to an IUCD pregnancy. Removing the IUCD is necessary, not transfusing blood.

E. Inducing an abortion is not a suitable management for an IUCD pregnancy. The appropriate action is removing the IUCD to prevent further complications.

**Clinical Pearl:**

In clinical practice, it is essential to promptly recognize IUCD pregnancies and manage them appropriately to prevent severe complications. Ultrasound guidance aids in accurate removal and minimizes risk.

**Correct Answer:** D. Remove the IUCD under ultrasound guidance.