It is common for breast soreness to fluctuate during early pregnancy. While losing breast pain at 5 weeks can be worrying, it doesn't necessarily indicate a problem. Breast soreness can come and go as hormone levels change. However, if you experience other concerning symptoms such as severe abdominal pain or bleeding, it's important to consult your healthcare provider. They can provide personalized guidance and reassurance based on your specific situation. Remember that every pregnancy is unique, and it's normal to have different experiences throughout the journey.