[whitneymichael]

Ok so I am confused exactly how far along I would be if I were pregnant. My LMP started on August 1. By that day pregnancy calendars say 2 weeks and 4 days but then babymed.com said 18 days is week 3. So which is it?

[Rebelmommy]

Both 2 weeks 4 days means you have fully completed 2 weeks and 4 days, thus you are actually 4 days into week 3. It is a bit confusing but that is how it works

[LuvRBx5]

Agreed. When you are 2 weeks it means you completed the 2 weeks and the 4 days means you are 4 days into the 3rd week so you are in the 3rd week. When you are a full 3 weeks then you'll be starting your 4th week.