Ovulation - positive digital but no phys signs

Hello, so I did a Clearblue advanced digital test yesterday which came up low fertility (a circle) then today was the solid smiley face! I added this into glow yesterday and it changed my pregnancy chance yesterday to be 25% and today 29%. Which is fine, but yesterday my mucus was thick and milky... it’s just so strange. Is this normal to go from low to peak and no physical symptoms...? Maybe my surge is just really steep? Anyway... we BD yesterday and today 🤷‍♀️