I'm 15 weeks 5 days and have had some spotting tonight. It's a small amount and I was told at my 12 week scan that I have placenta previa, so I know some spotting can be normal. I can't help but worry anyways. I have an OB appointment tomorrow and normally they only listen to the heartbeat, but i want request an ultrasound for some peace of mind. Has anyone done this? What's the likelihood of them letting me have an ultrasound if Im worried. I hate being a pain and don't want to screw up their schedule, but I am worried that something could be wrong. Any advice is appreciated!! Thanks!