In early pregnancy, start taking a daily prenatal vitamin containing folic acid (400 mcg). Avoid alcohol, smoking, excess caffeine, and raw foods. Consult your doctor before taking any medications; paracetamol is generally safe for mild pain, but avoid NSAIDs like ibuprofen. Regarding intimacy, intercourse is perfectly safe during a normal, low-risk pregnancy and will not harm your baby. However, you should avoid it and consult your doctor if you experience unexplained bleeding, severe cramping, or if you have been advised otherwise. Always discuss your specific prenatal care plan with your obstetrician.