You'll be fine as said they generally do this well.
Lambs etc You need to separate cords, place or introduce to mum, Ensure they get that first colostrum, blady blaa.
Pigs are awesome. Once they are born they will make there own way to the milk, not only that, but they will each have their own teat and stick to religiously. They find their way by following the direction of the hair, which in its self always amazes me.
As mentioned be there for farrowing, not only because of the roll over issue, so very common to loose piglets by crushing, it happens I'm afraid: But simply because the process and the way the piglets find there way to the milk source is quite frankly astonishing and not to be missed.
I Haven't dealt with farrowing for 20 years plus and I'm really looking forward to mine around August if Ive worked it out right, I thought two were pregnant, but I have a real hunch that its just one, time will tell. lol