Let me start off by saying this is my third pregnancy. And I probably just need to call my OBGYN to get an answer but it is driving me crazy and it's all about how far along I am. So here goes...

From the start of my last menstrual period (which was August 11th) I should be 8 weeks today.

According to the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a>, I ovulated August 25th - 31st all while BD during that time.

On September 13th I took a HPT and it showed positive, which was the day the app said my period was due.

On Wednesday (October 4th) I had my first OB appointment with ultrasound where they said I was measuring 2 weeks behind what I thought. So they said I am 6 weeks today. My question is am I suppose to subtract 2 weeks and that's when I got pregnant? Or do I add the 2 weeks because that's the days of my last period. If I count back only 4 weeks from today, that means I would have gotten pregnant and less than a week later gotten a positive HPT. Am I crazy or is this all just really confusing?

For my last two pregnancies I had no idea when I ovulated so I wasn't as confused surprisingly. 🤦🏼‍♀️🤷🏼‍♀️