I wouldn't advise you to take melatonin, as most medications should be avoided during pregnancy as it has side effects. So avoid the medications and try to sleep. These steps may help:
- Have a light meal at night before sleeping
- Avoid non sleep activities while on bed such as mobile phones, laptop, TV
- Avoid caffeine and carbonated drinks as the caffeine and
sugar will stimulate the brain and keep you awake.
- Don't skip meals and have a balanced diet, avoid spicy, oily, deep fried and junk food.
- Drink a minimum of 3 liters of water per day.
- Destress yourself with means such as yoga/meditation