All About the Early Luteal Phase

The early luteal phase begins right after ovulation — when the egg has been released and progesterone starts to rise. This hormone prepares the body for a potential pregnancy, but it also influences the brain. As progesterone increases, it interacts with GABA receptors, often bringing a sense of calm or slower thinking compared to the quick, focused energy of the follicular phase.

Cortisol sensitivity also shifts during this time. Some women feel more easily stressed or emotionally reactive, as their brain’s stress response adapts to the hormonal changes. Sleep may feel lighter, and energy can dip as metabolism adjusts to support a new phase of the cycle.

In the brain, regions linked to emotion regulation and reward — like the amygdala and prefrontal cortex — show subtle activity changes. These shifts can affect motivation and social connection, sometimes leaving people more introspective or sensitive.

Understanding the early luteal phase helps make sense of these fluctuations. With awareness, you can adapt routines — slowing down high-intensity exercise, focusing on stable blood sugar, and prioritising rest — to align with what your brain and body need.