1st retrieval

I will be 38yrs old next month and i just did my 1st retrieval today and I will have pgtA testing they said I have 11 eggs, but I am disappointed I definitely thought I would have more as i know with pgtA testing these numbers will decrease and honestly i dont feel like going through this pain again...... Anyways my rectum area hurts a bit kind of like iam gassy and iam having some cramping too. Is this normal? When will the pain stop? Also any post retrieval tips for recovery?