Mucus plug with brown streak

So I’ve been losing pieces of my mucus plug for a few days now and having more frequent contractions (nothing to warrant going in though 🙄). I have an appointment tomorrow to schedule to be induced (I’m 41 weeks today 😣) but they always say that if there’s blood to come in.

Last night when I went to the bathroom more of my mucus plug came out and there was a thin brown streak in it. I’m assuming it’s just old blood and no reason to bother even calling in, but I get so worried with everything because this is my first baby and I tested positive for gbs.