Follicle size 26 mm IVF

Sarah • TTC, chemical, 1 failed IUI, 10 egg retrievals; 44 yo

I’m undergoing ivf (retrieval) and had my US and blood work today. Unfortunately I don’t have many follicles above 18mm. But one of them has reached 26mm. Is that too big and will not be viable or is there still hope? I will be triggering today with retrieval on Sunday