Worried I'm calling the doc too often...

To call or not to call? Sorry this is long!! So this is my 1st pregnancy and I swear anything that can go wrong has so far. I'll be 13 weeks exactly on Saturday. So let me start from the beginning and try to make this as short as possible. Shortly after going into my OB for my urine pregnancy confirmation I had spotting. Called the doc and was checked and all was well. Another week or 2 went by and I had more spotting. Called again, was checked out. Found out I had a subchorionic hemorrhage/hematoma. Baby was looking good still. Was happy to know there was a reason for bleeding. Went for my initial prenatal appointment 1 1/2 weeks later and all was well. The SCH was no longer visible and appointment went great. Got scheduled for my next prenatal which is on Sept 6th. Well last Monday morning I fell down my stairs. Called my OB again and they said it wasn't really necessary to be seen but they'd squeeze me in if I wanted to. I needed the reassurance so I went in and all was well. Now I wake up this morning with some more brown spotting. Hubby and I haven't had sex recently but I have been working out more often and doing a lot around the house. I have no cramping and feel fine! Part of me feels like everything is ok but part of me wants to call for reassurance. But I'm worried to call because I don't want to be a bother. I'm a nurse myself but all that seems to go out the window when you're the patient. Haha. Any advice is appreciated.