Are we looking under the lamp although we know the lost key is somewhere else? Or is it just about the egg?

Although earlier data suggested that the pregnancy percentage decreases with oocyte numbers greater than 15-20 oocytes per retrieval ([29]), this is not true when additional FETs are included ([28]). 1987; 15: 245 - 51. 4 Vaegter KK, Lakic TG, Olovsson M, Berglund L, Brodin T, Holte J. Which factors are most predictive for live birth after in vitro fertilization and intracytoplasmic sperm injection (IVF/ICSI) treatments? Does local endometrial injury in the nontransfer cycle improve the IVF-ET outcome in the subsequent cycle in patients with previous unsuccessful IVF? 2018; 33: 58 - 64. 29 Sunkara SK, Rittenberg V, Raine-Fenning N, Bhattacharya S, Zamora J, Coomarasamy A. Association between the number of eggs and live birth in IVF treatment: an analysis of 400 135 treatment cycles. [Extracted from the article]