Sub chronic hematoma????

Misty

So I am 9 weeks and a few days. Got a call from doc about 9 week ultrasound. They found a small sub chronic hematoma!?! Put me on pelvic rest until I see him in a few weeks. No bleeding, no cramping, and baby is perfect! Measuring a few days ahead and heartbeat of 162. Should I be concerned? What do I watch for?

And more importantly is traveling ok? I am currently out of town, traveling by car?!?!