Uy mama, yan ay likely na mucus plug na talaga! White, yellowish, or may tinge ng brown ay normal appearance niya, kaya don't panic. A few of us experienced the same thing near the end, at it usually means your body is preparing for labor, pero it doesn't mean delivery is happening right away, ha, sometimes it takes days pa or even weeks. Definitely check with your OB lang ngayon para ma-confirm at ma-know what to watch out for next (like if you have cramping, spotting, or water breaking), para makatulog ka ng peace of mind! You're so close na, mama!