Brownish wet spotting 4.3 weeks

Chloe • TTC #1 Rainbow Baby 🌈👼🏽

How concerned should I be?? I had some pinkish rust spotting a couple days ago but it was after I was straining to have a bowel movement. And now I had this today. My dr office isn’t concerned if it isn’t heavy and red, but I’M STILL very concerned! 😥 I have an early ultrasound at 6 weeks so trying to be positive till then (hcg was more than doubling so that’s good, but they aren’t checking that anymore)