Symptom spotting : breast milk supply drop

Hi everyone! I am currently still breastfeeding. I work just one day a week and pump while I’m at work. All three times I pumped today I barely got anything (maybe a 5th of what I normally get 😬) which has never happened before. Im 5/6 DPO and wondering if the sudden drop in milk supply could be related to implantation. Im waiting to test until next week because I know it’s so early, but just curious if anyone has had a similar experience!