4. Early pregnancy loss, miscarriage and conception struggles
Sadly, low progesterone in early pregnancy can increase your risk of miscarriage. As we’ve covered, your body requires elevated levels of progesterone for key processes in your menstrual cycle, and for healthy implantation.
So low progesterone in pregnancy, before the placenta has taken over on production duties, can be a factor if you have a history of early miscarriage, or are struggling to conceive.
5. Mood changes
From depression and anxiety to general irritability, mood changes are hard to pin down, but can be key symptoms of low progesterone in the build up to your period.
Again, it’s about a balance in your hormones. Studies show that increased levels of progesterone (which is a relaxing hormone) in your luteal phase, versus estrogen, can cause lower levels of aggression, irritability and other mental health issues, including depression.
6. Disturbed sleep
Do you find it more difficult to get quality sleep in the second half of your cycle? As we’ve covered, progesterone is a relaxing, usually sleep-inducing hormone, and lower levels could contribute to a more ‘wired’ state at bedtime.
For some women, the brain actively needs permission to start shutting off. And hormonal imbalances, like a lack of progesterone, can aggravate this.
7. Breast tenderness, headaches and weight gain
These other physical signs can be symptoms of low progesterone, which is often associated with increased fluid retention. Headaches can also be triggered by a drop in hormones – you’ve probably heard of the ‘hormonal headache’.