24 weeks spotting advice

Elisa
Last night I had a tiny amount of pink spotting only when I wiped. I put a pad in and went to sleep. It was perfectly clean when I woke up and there was brown spotting when I wiped. I will call my doctor regardless but since it's Sunday should I call today on the emergency line? There's no cramping or pain so I don't mind waiting til tomorrow but I just wanted some advice!! I'll be 24 weeks pregnant tomorrow. Thank you!! ❤️❤️