Bismihi ta'ala

When a mother gives birth, she will have some post-natal bleeding. In our fiqh this is called Nifas. The rulings of Nifas is similar to the rulings of Haydh, or menstrual cycle, in which a woman does not pray, or fast, and also sexual relation is prohibited. Once her 'iddah period finishes, she prays and performs everything else that she was exempted from doing during that period, including sexual relation with spouse. 

The 'iddah period for Nifas has a minimum and a maximum. The minimum is as much as she sees Nifas blood, and the maximum is 10 days. 

So, it would depend on how long she has her post-natal bleeding.

On a side note, the new mother is of course overburdened with not only just giving birth, but also healing and resting, and taking care of the newborn. Therefore, it is very important for a husband to observe these issues and be considerate and try to help as much as possible. 

With prayers for your success.