Can you have a period and still be pregnant?

I should be 4 weeks and 6 days pregnant but I had a period it was the lightest one I've had only one day it got heavy but only had to change pad twice that day so it still a bit , I feel pregnant and have all the pregnancy symptoms.  Nauesous, dizziness , head aches , blood nose , bloating , thrist , body aches , and smells have been high! I need advice that's all cause I'm going crazy 😭💔