Spotting...please comment the good & bad

Skye
I'm 6 weeks tomorrow, at 5w 2d I started some light spotting a few hrs after intercourse. Went to the ER and saw a sac + yolk sac. The bleeding stopped and I was fine. Two days later it started again and has been on & off since. I should mention that I have no cramps, symptoms are increasing and the spotting is light to dark pink and only when I wipe. I took a test this morning, made sure it wasn't super sensitive and the test line was just as dark as the control line. Two nurses have told me that I should be perfectly fine, and that I should worry if i start cramping badly and soaking pads; but that doesn't help. I have accepted both outcomes, as heartbreaking as it could be. I'm 22 and this would be my first child. What do you ladies think...?