Good evening. I'm a first-time mom, please don't judge me? I'm current…

Good evening. I'm a first-time mom, please don't judge me? I'm currently at 35 weeks of pregnancy according to my doctor, but on ultrasound it's 36 weeks. I'm in the hospital for observation and just went to the bathroom and something came out... roughly (photo from the internet), but slightly yellowish... Is it possible that this is a plug?