If you got them in August and they were pregnant they would have had babies by now. So unless you exposed them to a male then they can't be pregnant. Swollen vulvas happen when they are in heat too which happens every 3-4 weeks.
What are you feeding? No, mothers do not clean them or help them with elimination. I would suspect something wrong with what you are feeding or how much if both died or maybe something was wrong with them and that's why mom rejected them. As far as squishing them I always bed with deep, deep...
Ok, I think the race is on to see which piggy has a litter first. Although I think micro mini pig is due first. :) Here is a picture of my girl, Lucy with expected due date end of July.
The piggy in the back is 3 years old and this is her second pregnancy. She is a lot bigger but she is also out on grass whereas her first pregnant she was not. She weighs 35 lbs not pregnant, haven't weighed her recently.
I'm glad to hear starlingsbaby's piggy has her own space. She does look...
In every pic of your piggy it looks as though she lives in mud. I sure hope you have her up in a dry area for her to give birth and away from that other larger pig that she appears to be in with. Good luck.