It is important to note that the absence of pregnancy symptoms does not necessarily indicate a miscarriage at 4 weeks. Every woman's experience with pregnancy symptoms can vary greatly, and some women may not experience any symptoms at all during early pregnancy. While it is natural to feel concerned about the sudden disappearance of symptoms, it does not automatically mean that you have lost the pregnancy. Pregnancy symptoms can come and go throughout the first trimester as hormone levels fluctuate. If you are worried, it is always best to consult with your healthcare provider who can provide personalized advice based on your specific situation. They may recommend monitoring your hCG levels through blood tests or performing an ultrasound to check on the progress of your pregnancy. Remember, every pregnancy is unique, and it's essential to seek professional guidance for accurate information and peace of mind during this time.