Two different types of delay ongoing. First, as mentioned a page or two back, one of the developers was attacked the other day and that has delayed the next update (which includes a steam update) a bit. Should've been by yesterday, but the devs said this morning that it'll probably be out sometime this weekend.
Next, the developers held a poll to reorganize implementation priorities, and some of the most intensive, difficult to develop systems won out. First on the list was better character customization, which has caused very small updates for the last few patches as the developers rip the game's guts out and replace everything to properly and fully support the system. As for any content delays that might cause, they have an active roadmap in a
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(linked in the OP of this thread) that they update as necessary.
At the moment it would appear pregnancy background systems are planned for October, and player-interactable implementations in November.