5 weeks pregnant - first trip to the ER

Hello everyone! So today I am actually 5w6d days pregnant and almost missed my 5 week updated, because it has been quite the eventful week. I almost didn't post anything because I didn't want to jinx myself...but here is what happened. On Thursday (5w2d pregnant), I started to have the tiniest bit of spotting...like literally one drop of light pink when I wiped...I know that some spotting is normal, so tried to calm myself down. That didn't work and I continued to be a crazy wreck that whole night. The next day, I started to have some dark brown discharge...again not a lot, but some. From everything that I have read, dark brown means old blood, so again tried not to let myself worry. The next day, same thing but a little bit more of the dark brown. At this point, I had read about 10 hours of articles about miscarriages and read so many different women talking about how their miscarriages started with brown discharge progressing to bright red blood and then severe crampin...