Do they not consider that Allah, Who created the heavens and the earth, is able to create their like, and He has appointed for them a doom about which there is no doubt? But the unjust do not consent to aught but denying.

And (as for) those of your women who have despaired of menstruation, if you have a doubt, their prescribed time shall be three months, and of those too who have not had their courses; and (as for) the pregnant women, their prescribed time is that they lay down their burden; and whoever is careful of (his duty to) Allah He will make easy for him his affair.