FET cycle and egg white discharge

Today isn’t day 6 of taking estrace 3 times a day. Scheduled to transfer on March 19th. I found egg white discharge today and it is little heavier than Normal. Is it expected? Should I be worried?

I was on BC after my ER which is on 1/30 started bc on 2/6. Started estrace 2/26.

Should I let my clinic know? I have an ultrasound scheduled for 3/11.