Pregnancy weeks are always expressed as completed weeks plus days. When you see 7+3, it means you’ve completed seven full weeks and are three days into week eight. The calculation starts from the first day of your last menstrual period, not the day of conception. It may seem confusing at first, but you’ll quickly get used to it.

Knowing your pregnancy week helps healthcare providers plan checkups, ultrasounds, and tests. Early in pregnancy, your midwife may adjust your dates based on your first ultrasound, which provides a more accurate due date.

This system is used worldwide and makes it easier to track your pregnancy’s progress step by step. So, 7+3 simply means: week 8, day 3.

Alma’s tips:

• 
  • Pregnancy weeks are counted from your last period, not conception.
• 
  • Ultrasound can fine-tune your pregnancy timeline.
• 
  • Use Lydova app to follow your baby’s growth.