Lost my mother a week ago

Hi guys it will be a week tomorrow since my mam has passed away from sarcoma . She was in the hospice for 6 months it became so much of a routine that I really don’t know what to do with myself . Is it normal that it hasn’t effected me yet ? I’m afraid it’s going to all hit me with a bang all at once I am trying my best to deal the best I can I have a 6 year old sister she is keeping us going but I feel that I should be grieving .