If you mean by shortening your Prayer performing it as Qasr, then it is obligatory to pray Qasr during traveling unless you reach to a place where you intend to stay less than ten days.
'If you mean by shortening your prayer, performing it with less recommended acts, then it should be clear that if your recommended worship clashes with your obligatory duties as a wife, then you should not ignore the obligatory for the sake of the recommended.
Wassalam.