Tell them you want to be seen. I had 3 days worth of bleeding each day was seen first a simple check told to call if it happened again, it did so I was sent to L&D got a closer check and was sent for a ultrasound the next day regardless of bleeding or not, did have it though and thankfully they couldn't see anything wrong that was causing it and must have had just a irritated vessel but it was definitely better to get checked then ignore it! 

Honestly don't think twice about it go to the er! You'd rather feel silly then feel sad 

Hun go to the hospital if you truly are worried, better to go and be sure you know?