Mama, please check with your OB right away about this, contractions at 20 weeks need proper medical guidance, hindi kami dapat mag-advise dito. Your doctor needs to know what's happening so they can make sure you and baby are safe. Go to your clinic or er if kailangan mo ng immediate check-up, okay? Once your OB gives the all-clear, they'll tell you exactly what's safe to eat and drink. Wishing you and baby all the best!