Feeling tired
The NHS says tiredness is common, especially in the first 12 weeks because of hormones, and later because of the extra weight.[1] It says feeling tired will not harm you or your baby.[1]
OWH lists trouble sleeping as a common change in the third trimester.[2]
Sleep position
The NHS says it is fine to sleep on your stomach early in pregnancy.[3]
The NHS says the safest position to go to sleep is on your side, left or right.[1] It says research suggests that after 28 weeks, falling asleep on your back can double the risk of stillbirth.[1]
The NHS says that if you wake up on your back, turn onto your side.[1] It says this applies to naps too.[3]
The NHS says sleeping on your side helps blood flow to the placenta.[4]
Tips for sleeping better
- The NHS suggests pillows under your belly and between the knees.[1]
- The NHS suggests relaxing before bed and avoiding afternoon or evening naps.[1]
- The NHS suggests avoiding tea, coffee or cola in the evening.[1]
- The NHS suggests antenatal yoga or Pilates and being active during the day.[1]
- If you pee often at night, the NHS suggests drinking more during the day and less in the evening.[5]
Dreams and worry
The NHS says strange dreams and nightmares about the baby or the birth are normal.[1]
It says sleeplessness with hopelessness or loss of interest can be a sign of depression, and to speak to your doctor or midwife.[1]
Questions families ask
Which side is best to sleep on in pregnancy?
The NHS says the safest position to go to sleep is on your side, left or right.[1]
What if I wake up on my back?
The NHS says to turn onto your side if you wake on your back.[1]
Why am I so tired in early pregnancy?
The NHS says tiredness is common in the first 12 weeks because of hormones.[1]
Free from UpOnly Learning. Written for families of every faith. No outside ads and no affiliate links. Every fact on this page comes from the sources listed below. How we source and review these pages
Updated 2026-10-24: first published.
Sources
All sources were opened and checked on the date shown.
- NHS (United Kingdom). Tiredness and sleep problems in pregnancy. Checked October 24, 2026.
- Office on Women's Health (HHS). Stages of pregnancy. Checked October 24, 2026.
- NHS (United Kingdom). 14 weeks pregnant guide. Checked October 24, 2026.
- NHS (United Kingdom). 34 weeks pregnant guide. Checked October 24, 2026.
- NHS (United Kingdom). 8 weeks pregnant guide. Checked October 24, 2026.