Enter the date your sow or gilt was bred to see her farrowing due date, the window most sows farrow in, and when to check, move and prepare. Or work backwards from the day you'd like piglets.
Dates stay on your device. Nothing is sent or saved.
Log the breeding in Flockwell and it counts down to farrowing and reminds you when to get ready.
Pigs are pregnant for about 114 days, easy to remember as 3 months, 3 weeks and 3 days. Most sows and gilts farrow between day 111 and day 117. Big litters often come a day or two early.
The calculator counts 114 days from the breeding date. If she was served more than once, use the first service and watch her from day 111.
Due dates for breeding on the 1st and 15th of each month, using 114 days. Print this page to keep it in the barn.
| Bred on | Due around |
|---|---|
| 1 Jan | 25 Apr |
| 15 Jan | 9 May |
| 1 Feb | 26 May |
| 15 Feb | 9 Jun |
| 1 Mar | 23 Jun |
| 15 Mar | 7 Jul |
| 1 Apr | 24 Jul |
| 15 Apr | 7 Aug |
| 1 May | 23 Aug |
| 15 May | 6 Sep |
| 1 Jun | 23 Sep |
| 15 Jun | 7 Oct |
| Bred on | Due around |
|---|---|
| 1 Jul | 23 Oct |
| 15 Jul | 6 Nov |
| 1 Aug | 23 Nov |
| 15 Aug | 7 Dec |
| 1 Sep | 24 Dec |
| 15 Sep | 7 Jan |
| 1 Oct | 23 Jan |
| 15 Oct | 6 Feb |
| 1 Nov | 23 Feb |
| 15 Nov | 8 Mar |
| 1 Dec | 24 Mar |
| 15 Dec | 7 Apr |
Call a vet if she strains for more than about 30 minutes without a piglet, if more than about an hour passes between piglets while she's clearly not finished, or if she's feverish, off her feed or very distressed.
About 114 days: 3 months, 3 weeks and 3 days. Most sows farrow between 111 and 117 days after breeding.
She doesn't come back into heat about three weeks after breeding. An ultrasound scan can confirm pregnancy from about 25 to 30 days.
About a week before the due date, so she settles in before she starts nesting.
It varies by breed, age and condition. Gilts usually have smaller litters than older sows. An experienced vet can sometimes estimate litter size by ultrasound.
These calculators give typical dates for planning. Individual animals vary, so watch for signs and ask a vet if anything seems wrong.