Sure, 4 years, because the fetus is asleep in between times.
fatwa of 20.09.2007 agree on the length of a pregnancy
all Sunni schools of Islamic law agree that a pregnancy can go over 9 months
Imam Malik Ibn Anas [the founder of the Maliki school of law of Sunni Islam] said, a pregnancy can take up to 4 years. It was in the history of pregnancies that lasted up to 4 years ... Al-Bayhaqi reported: 'al-Walid ibn Muslim said: I quoted a statement by Aisha [one of Muhammad's wives] that the longest pregnancy is not more than 2 years might take. Imam Malik said, 'Who can say such a thing. Our neighbor, the wife of Ibn Ajlan is an honest woman. Her husband is also honest. She was three times within 12 years pregnant. Each of her pregnancies lasted 4 years. '"(Sunan al-Baihaq. Chapter 7 / 443).
Umar Ibn al-Khattab, the second caliph after Muhammad, took the view that the duration could be pregnant 4 years.
The Koran verses that speak of gestation including waiting time of 30 months want to set a minimum duration of a pregnancy "
comment. Based on the assumption of long-lasting pregnancies are authoritative Muslim authorities of the Islamic Early it in criminal justice processes to Sharia Rules in charge of widowed mothers for alleged adultery, the ability to rely on these "dormant" pregnancies [that is to say that the fetus in the womb, for example, two rested for years had been born and therefore only three years after the death of the husband was]. In this way death sentences are avoided [..].
source quoted here: PI
