Hi everyone, my sow was due 14th march, but still no piglets today! she was in with the boar from Nov 9th, came into heat Nov 17th, serviced I think Nov 19th. No sign of heat 21 days later nor 21 days aftert hat, so I assumed the date would be 14th March? any ideas, how overdue can she go or am I being dim and missed something? she has been bagged up, has a redder/ prominent vulva and has become a bit grumpy!! for the last week! thanks!!