Hmm, weird, since it doesn't let me have the bedroom scene for some of them (though it's the 'first' run), even if I did them during the same day/week; it basically locks me from the bedroom scene all together. Some of them run like you said, while others just straight up gave me the preg-scene after I clicked the bedroom option. -- This might be due to me changing between difficulty levels though. Aka, changed it to Normal because the pregnancy was over too quickly so I couldn't get all the hearts at once, then changing to Super Easy for the extra energy (could also be the date change thing too, because I didn't know about the day skipper).
Ps. Darn does Venus' line inflate the child count; is there a way to lower/slow this down? Like intentionally not impregnating? Could be something like population control, because you can't support that much kids yet, or something.