Bleeding at 7-8 weeks.

Hey there!! I'm on my 3rd pregnancy and last night before I went to bed I wiped after going to the toilet and I had some bleeding it wasn't loads it was just a spot of it really small. I was really worried so went to bed kinda panicking but I woke up and haven't bled since. Could it have been a one off? I did spot with my two other kids but it wasn't bright red like this one. Thank you in advance x