Measurement of placental thickness and volume has a great importance in predicting adverse outcome specially in combination with other markers.

In order to determine abnormalities in placental thickness and volume, we should have a normal range of values and this can be achieved by a nomogram

Inclusion Criteria:

• Singleton pregnancies,11-18 weeks Reliable LMP Cases of ICSI with accurate date of transfer Cases of IUI with accurate date of IUI Cases of timed intercourse

Exclusion Criteria:

• Maternal Diseases Fetal anomalies Placenta previa, placental anomalies and poor visualization of the placenta Multiple pregnancies Unreliable gestational age

Singleton pregnancies,11-18 weeks Reliable LMP Cases of ICSI with accurate date of transfer Cases of IUI with accurate date of IUI Cases of timed intercourse