Movements

Alisha

Im 21 weeks and i felt my son move actively since maybe 18, 19 weeks well today he hasnt moved like he used to. Yesterday he was very active. I was wondering if this normal or should i be worried. I had 2 miscarriage and the last miscarriage the baby was still in my stomach so im scared. If this is normal than ill track his movements tomorrow. Is it normal for his movements to slow down like this?