Light yellow mucus at almost 5 weeks. Normal?

My doctors office can't see me til Friday and I'm just curious if light yellow mucus at 4w6d is normal or should I be worried? This is my rainbow baby so I'm trying my best to be relaxed but everything is making me nervous...i feel like I'll be okay when I get my ultra sound and hopefully see a heartbeat (i didn't get that last time)

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