Being aware of your baby's movement patterns each day is a very good habit to have during pregnancy. Most babies have developed a pattern of movement by 28 weeks (the third trimester), which helps the pregnant person to notice and also report changes to your healthcare professional. You'll usually feel movements best when you relax while lying or sitting down.
As a general guide, most healthy babies move more than 10 times over two hours, including rolling, stretching, jabs and kicks. If you think your baby's movements have decreased in strength or number, contact your healthcare professional.