Serum Vasohibin, Cardiotrophin, Endocan & Perinatal Outcomes

This study is measuring levels of specific proteins in the blood during early pregnancy to see if they can predict serious pregnancy complications like preeclampsia (dangerous high blood pressure in pregnancy), preterm birth, or growth problems in the baby. The proteins being studied are vasohibin, cardiotrophin, and endocan. **You may be eligible if...** - You are pregnant with a single baby (not twins or more) - You had your first trimester screening (at 11–14 weeks) and were found to be low-risk - You conceived naturally (not through IVF or other assisted reproduction) - You had no pre-existing health conditions before pregnancy - You have no uterine (womb) abnormalities **You may NOT be eligible if...** - You smoke - You were found to be high-risk at the first trimester screening - You are carrying multiple babies (twins, triplets, etc.) - You conceived using IVF or other assisted reproductive methods - You have any medical condition that started before pregnancy - You have any uterine abnormalities Talk to your doctor to see if this trial is right for you.