If the previous menstrual cycle was normal and regular, but this cycle did not use other drugs and health care products, and there was no sexual life, it should be this thing that caused the menstrual delay.

The ingredients of these weight-loss health products are unknown, and many of them will add some hormones, which will seriously interfere with the menstrual cycle.

It is recommended to stop observing.

If you stop menstruating for a long time, you need to check six hormones to determine how to deal with it.