Help please ladies


So I had faint lines on pregnancy tests after af was due and the one test looked very positive. I started to bleed that same afternoon, medium flow no cramping etc which only lasted 1 1/2 days then it completely stopped! And I’ve had negative tests since. So now I’m cd 12 and yesterday me and my boyfriend baby danced and 12 hours later I started to bleed bright red blood which lasted around 8 hours and Just brown spotting since. Has anyone else experienced this? I’m so worried that I never got my full period and every time I baby dance this will happen now 😢