What may be changing
Your body
There is usually no pregnancy to feel yet. This week is part of the clinical dating system.
Week1
First trimester
Dating starts before conception
This field guide uses dating starts before conception to connect body changes, development, the care conversation, and practical preparation.
A cautious view
Development
Gestational age begins from the last menstrual period, not from conception.
Appointment lens
Care this week
Prepregnancy care can review health conditions, vaccines, medicines, and prior pregnancy history.
Prepare next
Useful actions
- Record the first day of the last menstrual period if known.
- Write down the first day of your last period if you know it.
- Review medicines and supplements with a healthcare professional.
- Choose where you would seek prenatal care if a test is positive.
Ask your care team
Questions to bring
- Do any current medicines or health conditions need a prepregnancy plan?
- When should I confirm the pregnancy with a clinician?
- Should I change any current medicines or supplements?
Share the work
For a support person
- Make space for uncertainty without demanding an immediate emotional response.
- Help gather dates, medication names, and practical questions.
Sources and review