This study aims to identify whether a woman's diet during pregnancy is linked to her risk of developing preeclampsia. Preeclampsia affects 3-10% of pregnancies and can cause health problems for both mother and baby. This study will use food frequency questionnaires completed by 1,000 women both before and during pregnancy to analyze any connections between dietary factors and preeclampsia risk. The researchers hope to identify specific foods or nutrients that may increase preeclampsia risk so dietary advice can be given to help reduce rates of maternal and neonatal complications.