Spotting?

I’m 10 weeks and 4 days. I’m sick with a cold/cough and have been coughing fairly often for the last couple days. This morning after I peed there was a slight discoloring on the toilet paper. Almost like a pink/brown hue. I just went again a little bit ago and again a very light brown tint when I wiped. Nothing in the bowl and I’m not crampy any more than usual but I’m really concerned because this hasn’t happened before. We just heard the baby’s heartbeat on Wednesday so I felt like that meant everything was fine. Maybe I’m wrong?? Is this normal? Is it due to the coughing?? Help!