1 weeks pregnant
Pregnancy is counted from the first day of your last period. Here is what is happening in week 1.
- Size
- –
- Length · weight
- –
- Trimester
- First
- Weeks to go
- 39
Your baby at 1 weeks
Pregnancy is dated from the first day of your last period, so in week 1 your body is preparing to release an egg. There is no baby yet.
Your body at 1 weeks
Your period is happening. If you are planning a pregnancy, a daily folic acid supplement of at least 400 micrograms and an iodine supplement of 150 micrograms are recommended.
Your to-do list for week 1
- Start folic acid and iodine if you are trying to conceive
- Book a pre-pregnancy check with your GP
Common questions
How many months pregnant is 1 weeks?
1 weeks is in month 1 of pregnancy and the first trimester.
Am I pregnant in week 1?
Pregnancy is counted from the first day of your last period, so conception usually happens around the end of week 2.
All 40 weeks
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Useful tools
PregnancyDue date calculatorInstant due date, week and trimester.PregnancyPregnancy plannerEstimate dates and organise the weeks ahead.PregnancyAppointment trackerScans, tests, vaccinations and questions in one list.
Related guides
PregnancyPublic or private birth in Australia: costs and choicesHow public, private and midwife-led care differ, and what each usually costs.PregnancyMaking room for questions at your next appointmentKeep the things you want to ask in one easy-to-find place.PregnancyBuilding your support circle before baby arrivesSpecific offers of help are easier to accept.Dads & partnersA partner’s guide to pregnancyPractical ways to be involved from the first scan to the birth.