Confused?

Maybe you guys can help me out here. I did not expect AF until the 25th but on the 20th I started spotting. I had a light constant flow the next day, but by the next 2 days I was just spotting again. The 23rd was the last day I spotted. Here it is the 26th and I go to the restroom and when I wipe there's light blood and it's more pinkish in color. What's going on?? This has NEVER happened to me before. I've been usually regular and that af was definitely not what I'm use to and now this. What do you guys think? Has anything like this every happened to you? Did it lead to exciting baby news? I'm so nervous.