I think they did, but at the same time I also think that the "suppressant" Miyauchi injected Aoi with also works as a birth control drug. But that's just my opinion LOL, because after that nobody really made a ruckus about his probability of getting pregnant *shrugs*
so, the most important question is.............. did they have sex??? cause i can barely see it!! did the alpha impregnate the omega??(╯°Д °)╯╧╧