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Milk supply changes throughout the breastfeeding journey. However, it is natural to worry when you notice a sudden drop in it when you are actively breastfeeding your baby. You may become frustrated if your baby becomes fussier when they are put on the breast, or if they want to feed more often than usual. Their behaviour can make you doubt your milk supply.



You may notice the drop is more common around your menstrual cycle due to hormonal changes. You can respond to this phase confidently if you know the reasons for the dip.



Why Do Hormonal Changes Affect Your Milk Supply?

Your milk production depends on your hormones. Prolactin and oxytocin play a major role in releasing milk during pregnancy and breastfeeding. But this changes when your menstrual cycle returns, as oestrogen and progesterone begin to rise and fall again.



These hormonal changes can interfere with prolactin activity, which affects how much milk your body makes. The result is a temporary drop in supply.



The dip is more common if you get your period early, within the first six months after the delivery.



When Does Milk Supply Usually Drop During the Cycle?

The dip happens in the following timelines for some:

• A few days before the period starts
• During the first two to three days of bleeding
• In the middle of the cycle during ovulation

You will notice that there is a drop each month and also recovers on its own.



How Do Hormonal Shifts Change the Taste and Composition of Milk?

Mineral levels in your milk may shift during your period. Calcium levels can drop while sodium levels rise. This may make your milk taste a little different from usual.



Therefore, it is normal for babies to:

• Feed frequently
• Pull off the breast
• Seem restless

This does not make your milk bad. It simply means your baby is reacting to a temporary change in taste.



How Calcium and Magnesium Influence Supply

Low calcium levels can lead to stronger dips in supply during menstruation. So, you can increase your calcium and magnesium intake before your period to stabilise milk production. It will also reduce nipple tenderness.



Your doctor may suggest starting supplements two to three days before your cycle, but only after medical guidance.



Is the Drop in Supply Permanent?

The dip in milk supply is temporary in most cases.

• Supply gets normal after the first few days of your period
• After hormone levels settle
• When feeding or pumping is consistent

The dip also gets milder as your body adapts to the hormonal changes.



Why Does Your Baby Seem Hungrier During This Phase?

Your baby may behave differently when your supply dips. You may notice the following behaviour:

• Want to get fed frequently
• Longer feeding sessions
• Fussiness at the breast
• Waking more during the night

Babies are sensitive to small changes in feeding. This does not mean they are not getting milk.



Cluster Feeding as a Natural Response

Some babies begin cluster feeding during this time, which helps your body rebuild production levels.



Although it can feel tiring, it is your body’s natural way of balancing supply and demand.



Are Cramps, Tenderness, or Nipple Pain Linked to Supply Changes?

You may notice the following signs:

• Nipple sensitivity
• Breast tenderness
• Mild cramps while feeding
• Temporary discomfort

You should contact your doctor if pain is severe or accompanied by fever, to rule out mastitis or infection.



What Can You Do to Support Supply During Hormonal Drops?

You can reduce the impact of hormonal changes.



Practical Steps You Can Follow

• Feed or pump more frequently during the dip
• Offer both breasts during each feed
• Avoid long gaps between feeds
• Stay hydrated throughout the day
• Eat balanced meals rich in calcium and iron
• Ensure proper latch and positioning

You may find relief with warm compresses or a gentle massage, which can also improve milk flow.



Nutritional Support

Your doctor may suggest the following steps:

• Calcium and magnesium supplements
• Iron-rich foods
• Leafy vegetables, fruits, and proteins

Do not start any supplements on your own.



When Should You Consider Pumping Support?

Pumping may help maintain supply if your baby becomes fussy or cannot latch comfortably.

• It can stimulate additional milk production
• It can provide extra stored milk
• It can support feeding during fussiness

You should avoid pumping frequently unless recommended by a lactation professional.



What Emotional and Mental Changes Might You Experience?

Hormonal dips can also influence your mood. You may feel:

• More emotional
• Overwhelmed or tired
• Sensitive or irritable
• Anxious about supply

Talk with your partner or family about it to reduce emotional stress. Their support can strengthen your confidence in your breastfeeding journey.



What Warning Signs Mean You Should See a Doctor?

You should seek lactation support if you notice the following signs:

• Ongoing supply drop that does not return
• Rapid weight loss in your baby
• Very few wet diapers
• Signs of dehydration or weakness in your baby
• Severe pain during feeding
• Nipple cracks, infections, or swelling

These may be due to:

• Nutritional deficiency
• Thyroid disorder
• Anaemia
• Hormonal imbalance
• Latch or feeding issues

What Should You Do Next? A Simple Checklist

• Track your cycle and observe changes in the supply
• Increase feeds slightly during dip days
• Maintain hydration and nourishing meals
• Rest whenever possible
• Ask your doctor about calcium or magnesium supplements
• Seek lactation advice if supply concerns persist

A sudden drop in milk supply is a common experience around your period. It occurs due to changes in oestrogen, progesterone, and mineral levels, which affect milk production and taste. The dip is usually temporary and resolves as hormones stabilise. You can continue your breastfeeding journey with confidence by seeking guidance when needed.



Whether you’re pregnant, a new mom, or navigating postpartum, you don’t have to do it alone. Join our support group to connect, share, and support one another.



FAQs on Why Supply Drops Suddenly During Your Period or Monthly Hormonal Shifts?

Does every breastfeeding mother experience a supply drop during their period?

No, only some may notice a dip, while others do not experience any change. Everybody reacts differently to their hormones.

Can your period return early even if you are exclusively breastfeeding?

Yes, menstruation returns early for some women, especially if feeding intervals increase or pumping replaces direct feeding.

Will supply stay low permanently if cycles continue?

Supply returns to normal after the hormonal phase passes in most cases. You can consult your doctor or a lactation expert if your supply remains low.