my cycle is officially 1 week late

Daje
My cycle was supposed to come last Frieday & here it is a week an a day later (Saturday) 🤦🏾‍♀️ idk how I feel about a baby rn I just want to know where is mother flow?!?! I took a pregnancy test to see if it could tell my why the sudden change but the test came back negative 👌🏾..... I'm open to commentary & advice lol 
#1. Should I take another test ?
#2. Should I not worry an just wait for nxt month ?
#3. Should I call my mother & talk to her ?