We could go round and round in circles forever, but I'm starting to get really bored with this topic, so here's my final word on it. Realism is more your thing than mine. You're always complaining that the Dev isn't rational about introducing storylines, unless it relates to characters that you like, when mysteriously you suddenly don't seem that bothered. As far as I'm concerned, this game doesn't have to have every storyline, make absolutely perfect logic. The important thing, is whether the scenes are erotically entertaining, and if they achieve that, well it's ticking most of the boxes for me. If you're looking for realism, then you're definitely playing the wrong game, because this is primarily entertainment, with the emphasis on fap value. That's why Deep puts most of his effort into the renders, with the plot very much playing a lesser supporting role.
As far as Anna getting impregnated. Well if you're using birth control correctly, there is only a very tiny possibility of getting pregnant normally, and she would have to have sex at her current rate, probably for a whole year to significantly increase the likelihood that she would conceive regardless. But since she's only been having sex like that for a few weeks, that point has not been reached yet, and probably wont be within the duration of this game. Yes, there is a higher than average possibility that someone like Anna could conceive whilst on birth control, but since that average starts off minutely small, it requires an awful lot of creampies before Anna can realistically get anywhere near that point. Not that it makes much difference, since even if she did get pregnant, she wouldn't show for months anyway. By which time the game would have ended. So it serves little purpose to have her get pregnant right now.
Alfred has had more major scenes with Anna in this game, than anyone. So I don't understand the point you're trying to make?