Progesterone is a naturally occurring hormone crucial for the female reproductive system, primarily produced by the ovaries after ovulation. In a typical menstrual cycle, progesterone levels rise after ovulation, marking the start of the luteal phase. This increase causes the uterine lining, or endometrium, to thicken and become receptive to a fertilized egg. The hormone maintains this lining, creating an environment suitable for implantation and early pregnancy.
If pregnancy does not occur, the corpus luteum, which produces progesterone, breaks down, leading to a sharp decline in progesterone levels. This drop signals to the uterus that pregnancy has not been established, causing the uterine lining to shed and resulting in menstruation. Progesterone suppositories are a synthetic form of this hormone, delivering a consistent dose to mimic and sustain the body’s natural progesterone levels.
Delaying Your Period with Progesterone Suppositories
Progesterone suppositories can delay a menstrual period by sustaining the uterine lining. When administered, these suppositories maintain adequate progesterone levels, preventing the natural hormone drop that triggers menstruation. Keeping progesterone levels elevated ensures the uterine lining remains stable and does not shed, thus postponing the period.
This mechanism is often utilized in fertility treatments, such as in vitro fertilization (IVF), where suppositories provide luteal phase support to enhance embryo implantation and maintain early pregnancy. Under medical supervision, progesterone may also be prescribed to delay a period for a short duration. It is important to understand that the period is delayed, not indefinitely prevented; menstruation typically occurs once progesterone administration ceases.
What Happens After Stopping Progesterone Suppositories
Once progesterone suppositories are stopped, the external hormone supply is withdrawn, leading to a rapid decrease in progesterone levels. This sudden drop mimics the natural hormonal shift at the end of a non-pregnant menstrual cycle. The uterine lining, previously maintained by the exogenous progesterone, then begins to break down.
This process commonly results in a “withdrawal bleed,” which is similar to a regular menstrual period. This bleed typically begins two to seven days after discontinuing the suppositories. The exact timing can be influenced by factors like the duration of use and individual physiological differences in hormone processing.
Key Considerations for Progesterone Suppository Use
Using progesterone suppositories requires careful consideration and should always be done under healthcare professional guidance. Common side effects include drowsiness, breast tenderness, and mild gastrointestinal upset. These effects are generally manageable but should be discussed with a doctor if bothersome.
Progesterone suppositories are prescribed for specific medical conditions, such as supporting early pregnancy or addressing certain menstrual irregularities. Attempting to use these suppositories without medical supervision, especially for convenience, is not advisable. A healthcare professional can accurately assess individual needs, determine treatment appropriateness, and monitor for potential adverse effects.