Maybe there is a little confusion here. Scene 6 in the guide is the same as scene 5, but it is listed as another scene because the unlocking method is different. It only happens if you haven't unlocked scene 5. The scene you are referring to is scene 7, which you need to have helped Megan. There is nothing wrong, but I will try to change this in the guide for the next version to avoid confusion.
So Anya and Abigail are mutual exclusive pregnancies, I assume there are other exclusive pairings among the list, if so which?
Alexis requires high Corruption, whereas Adriana requires low Corruption, so there’s that.
If you want to get the Abigail scene, then after Gina wins (if she won on your playthrough), you can change the variable "ginachampion" using something like SavedItOnline and then it will give you the Abigail scene instead of the Gina post-win scene. (I tried to get it to do both and unfortunate just not possible - a shame, as I love Gina but I also love impregnating women.)
As Euron193 mentions Alexis and Adriana are technically exclusive, but unlike Abigail and Anya you can actually get both Alexis and Adriana on one playthrough by altering the corruption variable to fit either threshold along the way. As well, I think the recent 'dream' scene we saw in an update lets us quickly drop or gain corruption as a onetime change, maybe allowing someone who does minimal corruption to impregnate Alexis to impregnate Adriana as well without making the change artificially.
Don't you also need to miss a day of rehab help for Gina to get the unsure confidence level to unlock the Anya scene?
The tooltip is to indicate that you can see different dialogues depending on the route you chose with Adriana the day before. If you chose the low-corruption route and promised commitment to Adriana, she now truly reconciles with Ava. If you chose the high-corruption route, Adriana will only make peace with Ava to fulfill her promise but remain hurt and will never forgive Ava for real.
Many choices in the game give you corruption. There is a post from a user a few pages back that details many of the choices that grant corruption points. You can use the search tool.
