It is common for baby movements to fluctuate throughout pregnancy, including periods of reduced activity. At 22 weeks, your baby is still small enough to change positions and hide behind the placenta, making their movements less noticeable. However, if you are concerned about the decrease in movement or if it persists for more than a day or two, it is important to contact your healthcare provider. They can perform an ultrasound or monitor the baby's heartbeat to ensure everything is okay. Remember that every pregnancy is different, so trust your instincts and seek medical advice when needed.