Thank you for asking in HCM. Your situation is partly manifested morning sickness during pregnancy. They only lasted for the first 3 months of pregnancy, but some women can last through 9 months. In particular, morning sickness or are stimulated by smell. Ondansetron and Doxinate are safest drugs and are easily available. You should: Eat something dry in the morning, it will help reduce nausea. Get a good night s sleep and a good rest. Stay away from stressful situations. Drink plenty of water throughout the day. You can also chew on a few slices of ginger. you should check fetal ultrasound at times:   7-8 weeks to check fetal heart. very important time of 11-13 weeks, a pregnancy ultrasound helps extremely accurate.  predict the risk of Down and chromosome abnormalities of the fetus. This test is only valid if made on gestational week 14-17.   time of 21-24 weeks, an ultrasound can help detect most abnormal fetal morphology such as cleft lip, cleft palate, malformations in the agencies and organs. This ultrasound is important because if the abortion is needed to be done before the 28th week.   pregnant mothers at 30-32 weeks, you will be tested for blood counts, urine tests and a tetanus shot. In addition, ultrasound will detect some problems occurred late morphological abnormalities in the arteries as the heart and brain, check the status of development of the fetus.    Approximately 35-36 weeks, you will be tracking color doppler ultrasound umbilical artery, cerebral artery, uterine artery, check the amniotic fluid, umbilical cord ... Hopefully help get you something. Thank you!