Thank you for the question.
What you are experiencing is called a subchorionic hemorrhage. It is very common and given how far along you are, the chance of miscarriage is very low. Yes, I would agree with taking it easy and avoiding excessive activity, but if the pregnancy is healthy otherwise, there really is little to worry about. If I had a patient ask a similar question, I would state that it was appropriate to play the trumpet as long as you do not play it too 'strenuously'.
I hope that this helps and good luck! Please remember to leave a POSITIVE rating. Feel free to ask more questions.Dr. Tim
Thank you for the followup.
It is common for the scan to change the dates and it was appropriate to change to the new due date. It would have been more concerning if the growth was lagging by two weeks, but you are actually two weeks further along. SCH's are common and they eventually go away. If you are bleeding heavily today, then you need to get back in for a scan tomorrow. They should also perform an exam and look at the cervix and make sure that there is not some other source of bleeding. As I tell patients, the less you do, the less you will bleed. Your body has a way of stopping this bleeding and you need to take it easy and avoid activities where you are 'straining'. With regard to the questions of what to do - I would call your doctor tomorrow and review that you have been bleeding over the weekend and need to come in for a visit and ultrasound to review the situation. Finally, do not go to the internet for answers - many people use it as a place to tell their horror stories.
Does this help?