Yes, it is generally safe to take a vacation during the second trimester. However, it is important to discuss travel plans with your doctor beforehand to ensure that it is safe for you and your baby. 

The baby typically starts to move during the second trimester, usually between 16-22 weeks. The movements may feel like butterflies, but as the baby grows, the movements will become more pronounced. 

Yes, it is safe to exercise during the second trimester. Exercise can help to keep your muscles strong and flexible, reduce stress, and keep you feeling energized. It is important to talk to your doctor before starting any new exercise routine.