When preparing to give birth, every woman will feel extremely happy and proud, but at the same time, she will feel a little uneasy. What are the signs of labor? Is labor pain bearable? What should I eat to gain strength during labor? How to have a natural birth Let’s learn together how to better spend the most important moments in our lives. Signs of labor Within one month of the expected date of delivery, changes in hormone levels in pregnant women will increase the excitability of uterine muscle cells. Some pregnant women will have irregular uterine contractions, sometimes once every few minutes, sometimes only once every half an hour. Each contraction lasts no more than 30 minutes and does not gradually increase.