What is this?

R • Mommy to 3 beautiful boys 👦🏻👦🏻 👶🏻💙💙💙

So I have been having this discharge that looks like brown blood for almost a week. It’s not every day but maybe 3 times already in 1 week. I’ve had it stain my underwear once, I told my midwife on Wednesday when I had my check up and she said it may be my mucus plug? With my last son my mucus plug didn’t look like that. Can anyone tell me if they had a similar experience or if I should head out to L&D I’m currently 35 weeks 6 days.... TIA