But you can avoid the special takeout in the first place. That's why i say it can't be one of LI's or any girl MC bangs, because, i should check back, there is no bang you can't avoid and the pregnancy happens anyway.
So, if there is any unavoidable bang i don't remember, it can be her. Otherwise someone else is pregnant. Even a LI if they had fun behind the back of MC.
I don't think it's Arieth, she's a comic relief and the pregnancy, i presume, is supposed to rise drama and conflict.
- It could be, as many point, Heather, and Tommy is the father.
- It could be a LI who slept with others, but the conflic element wouldn't work much if your MC is not pursuing the route.
- It could be a student who slept with professor Burke
- It could be Elena, but it would be a conflict only if the father is not John Boy, but i just don't see them in the role.
- It could be someone related to Derek, even if is too much of a positive suppor character.
I really don't think it's Arieth, as mentioned, Dany who is another comic relief and there was already a pregnancy plot about her, any of the strippers, who are almost all adult and all too smart and any of the prostituting girl, apart, maybe, Riona, because no one would care about. But Riona already has plenty of issues going on.
My most suspected are Heater from Tommy, Ashley, but not from Derek, Mona from Burke somehow, any other girl from Burke or Sally from Magmar.
Unless it was a diary part in which Lynette found she was preg. But in that case it would have been too much of an red herring.