Signs of Pregnancy in Guinea Pigs

On average, guinea pig pregnancies last 63 days, although any time between 59 and 72 days is still within the normal range. This fluctuation in the gestational period depends on the litter size; larger litters have shorter terms of pregnancy. Pregnant sows exhibit noticeable signs that progress through the stages of pregnancy.

  1. Increase Thirst

    • Increase thirst is often the first sign, usually observed during the second week of pregnancy.

    Frequent Urination

    • While this is a natural result of the sow drinking more, it also reflects hormonal changes.

    Weight Gain

    • This is noticed during the third week of pregnancy and is the result of the growing fetuses as well as the sow's increased appetite.

    Physical Signs of Fetuses

    • The outline of the babies may be felt through the sow's skin as early as the fifth week. By the seventh week, movement of the fetuses in the womb may be felt or seen.

    Decreased Mobility

    • The female will have increased difficulty moving around, especially in the final week of pregnancy.

    Widening of the Pelvis

    • About a week before the sow is to give birth, the pelvic area immediately in front of the genitalia slowly separates.