Poking at this new update, but i think i've found a reliable softlock? It seems if I start the Warm-Up Test event while undergoing a pregnancy, it never loads the actual event(?) and stays on a black screen until i restart the game. The few times i've managed to get through it was when I didn't have an active IRP due to re-gathering numbers for the various training options.
-Edit: This seems to carry over to the follow-up events as well, Ramping Up also softlocks if pregnant. Also it seems the outcome of Ocean View going to the beach, but leaving and finding the aura'y thing instead, didn't actually give me an extra Training slot.