Is this a chance to preg Shanna after marriage event?
Yes, all replays from the CG room work exactly as the original scene. It's a %-based chance, so you might just be unlucky. If you're already far enough in the game, you could advance the events of Mirel and Orchel, to eventually get the recipe for fertility potions from Zentha to get a 100% pregnancy chance for the next scene. (The effect is stackable.)
Thanks for the quick reply and sorry for being a pain. I just did has you suggested. I went to the "CG room", stacked 6 fertility potions, I ran the only sex scene available for Naomi (First sex scene) and still no success in preg. I also tried the same with Dea and also didn't manage to preg her. Am I doing something wrong or out of order? Thanks in advance.
Are they perhaps flagged as pregnant already? You only get the animation for the impregnation once. You can check the heart icon below the face image in the CG room to see if they're already pregnant.
There is no order or other requirement. You have sex with a girl, you have a chance to get her pregnant.
I double checked and she is not flagged as preg. In my save, Shanna is preg. but Naomi isn't flagged as preg. (never was nor I interrupted the preg.) And I might be wrong, but if she was flagged (even if it wasn't showing), in the "time skip preview" it would appear in the "preg" act, the next CG scene. Thanks for all the help.