The baby's first movements, often referred to as "quickening," can usually be felt between 18-25 weeks of pregnancy. However, every pregnancy is unique, and some women may feel these movements earlier or later. Initially, the movements may be subtle flutters or gentle taps that gradually become more pronounced as the baby grows. By the third trimester, you should feel regular and stronger kicks from your baby. If you have any concerns about fetal movement patterns, it's important to consult with your healthcare provider for reassurance and guidance.