I still don't get how you know when it's false labour.
我不知道，那是错误的分娩反应。
英语百科
Braxton Hicks contractions
（重定向自False labour）
Braxton Hicks contractions, also known as prodromal labor or practice contractions, or false labor, are sporadic uterine contractions that sometimes start around six weeks into a pregnancy. However, they are not usually felt until the second trimester or third trimester of pregnancy.