Patient's question:
I used to have a regular menstrual cycle, but since the sexual activity on the 7th of last month and taking the birth control pill Zuo Yuting, my period has been somewhat irregular. After taking the first pill, I had another sexual encounter without taking any protective measures, so I took an additional box of the pill. I took one pill every 12 hours, and during that time, I took a total of two boxes, which is four pills. My period started on the 3rd of last month, and on the 7th, I had sexual activity and started taking the pill. Then, on the 16th, I had another period, which means I had another period about half a month after taking the pill. However, since the 16th of October, I haven't had my period again until November 21. What could be the reason for this? First follow-up question: How can I determine whether I am pregnant or not?Doctor's answer:
Yutong may likely have some effects on a woman's menstrual cycle. In a normal menstrual cycle, the first half of the cycle consists of estrogen in a woman's body, while the second half consists of both estrogen and progesterone. Therefore, if Yutong is taken during the first half of the cycle, it may cause significant interference with the menstrual cycle, leading to vaginal bleeding. In some cases, the bleeding may be light, while in others, it may be similar to a regular menstrual flow. Additionally, skin spots may also appear, so special attention should be paid. On the other hand, the impact during the second half of the cycle is relatively minor.At the same time, Yutong may cause some women to experience early or delayed menstruation. This is because the external hormones alter the body's normal hormone levels, disrupting the endocrine system. No special treatment is required for this.