First of all, best wishes for your future baby. Remember one thing that, for most pregnant women, intercourse during the initial stages of pregnancy is perfectly safe but it is always advisable to discuss the topic with your regular doctor, especially if you have a high-risk pregnancy.(e.g. Women at risk for miscarriage or preterm labor may need to avoid sex during the first few weeks of pregnancy.) Now comes to second part of your question, it is best to avoid all medications in the first 12 weeks of pregnancy because that is a critical time for the development of your baby s vital organs. You can try some other form of treatments like, Getting plenty of rest. Drinking a lot of fluids. Gargling with warm salt water for a sore throat or cough. Others things you can do to reduce your risk of getting sick : Often washing your hands. Getting enough sleep. Eating a healthy diet. Avoiding close contact with sick family or friends. Exercising regularly. Reducing stress. It is best to consult with your doctor before taking any medications to relieve your symptoms. All the best . Take care.