On AO3, 0.67% of F/F is tagged “Pregnancy.” 2.04% of F/M is tagged “Pregnancy.” 1.56% of M/M is tagged “Pregnancy.”

I’m working on a bunch of stats about how F/F differs from M/M on AO3 – not the basic amounts or the biggest ships, which I’ve looked at before (most recently in 2021); this time I’m looking more at differences in ratings, warnings, and other tags. Here’s one interesting things I found along the way: F/F is tagged “Pregnancy” far less often than M/M – in fact, M/M is tagged “Pregnancy” 2.3 times as often as F/F.

I’m unsurprised that F/M is tagged “Pregnancy” the most often, as that’s obviously the combo most likely to lead to pregnancy in the real world. But it’s interesting how much more common mpreg appears to be than pregnancy within an F/F pair! In fact, M/M is closer to F/M than to F/F.

Stay tuned for more comparisons!

Edit: I forgot to specify something important about my methods! Since F/F ships are so often background ships on AO3, I tried to exclude the fanworks where the F/F ship was possibly a background ship. (And I did similar for F/M and for M/M.) So in the graph above, the categories above are actually:

• “F/F” = F/F fanworks, excluding fanworks also tagged M/M, F/M, Multi, and Other (I let Gen stay, because Gen doesn’t indicate the possible presence of another ship)
• “F/M” = F/M fanworks, excluding F/F, M/M, Multi, and Other
• “M/M” = M/M fanworks, excluding F/F, F/M, Multi, and Other