White mucus looking string@ 4 was 3 days

Victoria
Hi everyone I am went to see if anyone has experienced this.
 I haven't tested yet, I missed my cycle May 8th ✅ currently 3 days late. According to the glow <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">pregnancy app</a> I am 4 weeks and 3 days if I am pregnant, I am testing tomorrow. 
But my question was is the mucus during normal around this time or has anyone experienced this if so please leave your thoughts below