It is common for women to feel movement from their second baby earlier than with their first pregnancy. This is because the uterus and abdominal muscles have already been stretched and experienced pregnancy before, making it easier to detect fetal movements. However, every pregnancy is different, and some women may not feel movement until later on. Factors such as the position of the placenta and the individual sensitivity of each woman can also affect when movements are felt. If you are concerned about not feeling any movement at 17 weeks, it is always a good idea to consult your healthcare provider for reassurance. They can perform an ultrasound or listen to the baby's heartbeat to ensure everything is progressing normally. Remember that every pregnancy is unique, so try not to compare yourself too much to others' experiences. Trust your instincts and reach out for support if needed.