Pregnant with baby #4

Erin

Sooo here we go again lol BUT I am super confused because I got my period September 4th, so I thought. Our dog got really sick that weekend and we had to put him down so it’s a blur to me if it was like a regular period or not. Although it was only 4 days. Should I be worried? That’s never happened to me with any of my pregnancies. I have an appt but it’s not until Oct 7th