It's common in twins I m also having twins that moves less

<span style="color:#3B5998;"><b><a href="http://app.babychakra.com/article/3171">Fetal Movement Week By Week: What To Do When Movements Reduce, What Is Normal And What Is Not</a></b></span>

The movements keep changing as the position varies..there will be less space as the baby grows later as the space is limited...sharing an article.