TTC questions on symptoms and discharge

I have been TTC since 2 year ago and I was detected with possible endometriosis and adenomyosis after I had my first miscarriage in May 2021. I am currently 12 DPO and since 5-6DPO, my nipples were very sensitive and hard. Just yesterday and today, clear, thick and rubbery discharge that resemble ovulation came out which is unusual as my next period is expected 2-3 days later and during these period, I am usually dry. I did not dare to do early test to avoid disappointment again. Do any of you have these kind of discharge right before period and tested BFP? P.S. I am undergoing TCM treatment to boost fertility by letting the egg mature faster since 1 week ago. Not sure if this TCM is the reason why I had such discharge now.