There's not much info on subglandular breast augmentation recovery. Curious how soon most patients get back to normal? (photos)

Subglandular augmentation certainly has a faster recovery in most instances due to the lack of muscle pain. However, it's important to let the incisions heal well so there is no exposure of the implant, which has less coverage than in a submuscular position. I'm not sure the edge you are suggesting in the photo is actually your implant; it may be a skin roll, but it's hard to tell and you'd need to be examined to know for sure. Swelling might account for a half cup size but probably not a full cup size for the implant size range you have.

Congratulations on your recent breast augmentation.   Every surgeon has different post operative managment suggestions.  I generally have my patients avoid any strenuous upper body activity for a month.   Lower body (walking, jogging with sports bra) can begin at 3 weeks.   Regular workouts can begin at 4-6 weeks depending on how well everything has healed.  Swelling after the procedure will take several weeks and up to a couple of months to completely resolve.