Let your baby sleep on her back only as of now. Your baby's natural sleeping position will be on her back as she is very small. If your baby by any chance turns, bring her back to her original position.

hi <font color ="#3b5998"><b> @63729c0898dafd001537b2fa </b></font><font color ="#3b5998"><b></b></font><font color ="#3b5998"><b> @63729c0898dafd001537b2fa </b></font> it's perfectly ok, please make sure that the nose of the baby is not blocked by anything while she is sleeping on any of the sides. else it's fine. every baby is different, if she is comfortable sleeping like that let her be, just keep a watch.