Had bleeding last week and still freaking out

Ashley
Hi! New here. So I got my bfp last Thursday, and found out that I'm 4 w 6 days today. Two days after getting my positive, I went to the bathroom and had three quarter size spots of red blood in my panties. After that, I had brown spotting for the next day and then it stopped. I went to the doctor and they drew blood to check my hormone levels. They are "increasing nicely." Still though, I'm so worried. I've read causes for bleeding in early pregnancy and none of the seem good. Has anyone had this happen and things turn out fine?