It is completely normal to have days where you don't experience any pregnancy symptoms, even at 9 weeks. Every woman's body and pregnancy journey is different, so the presence or absence of symptoms can vary. Some women may experience consistent symptoms throughout their pregnancy, while others may have days with no symptoms at all. As long as you have had a healthy ultrasound and your healthcare provider has not expressed any concerns, there is usually nothing to worry about. However, if you are experiencing severe or persistent symptoms such as heavy bleeding, severe abdominal pain, or fever, it is important to contact your healthcare provider immediately as these could be signs of a complication. Otherwise, try not to stress too much about the absence of symptoms on certain days and focus on taking care of yourself and following your healthcare provider's recommendations for a healthy pregnancy.