It doesn't seem like Felicia can get you pregnant, there doesn't appear to have any checks or rolls.
Ahhhh... yeah. Similar issues to the condoms really (it was checking the genitals selected for the scene if they blocked pregnancy checks, regardless if they were the relevant genitals, as this is the only scene that involves multiple player orifices currently), hadn't thought about that. The fix I used for the condoms should work for the strap-on issue too. It will probably go live somewhere after Christmas.