I don’t think you need to panic mama 😊 Breast changes can fluctuate throughout pregnancy. Some people’s breasts grow alot in 1st trimester then “settle down” later, so it may feel less full or smaller. As long as baby is growing well and no bleeding/cramps etc, usually not a concern 🙏🏻 But if you notice sudden significant changes together with loss of pregnancy symptoms or you feel something is off, just mention it at your next checkup for reassurance