We thought about it, but my husband is not a handy man. And i can’t help him since i am bedrest for couple months. And he has to look after the kids so there is no time for us.
		
		
	 
Welcome to BYC.
I agree with the above that prefab coops are a waste of money -- too small, poorly-built, and badly-designed. Even the better-made (but still ill-ventilated), OverEZ and Omelet coops claim to hold FAR MORE chickens than they can legitimately house -- basing the claims on legal minimums for commercial chickens. Carolina Coops are better built and more realistically-sized, but still not optimally-ventilated and quite expensive.
Where, in general, are you located? Climate matters, especially in regards to housing.
For people who aren't handy the best option is usually a shed conversion or a hoop coop. 
However, may I respectfully suggest that given the bed rest situation this might not be the best time to start with chickens? They do not require a LOT of time and work -- once you're setup. But having experienced bed rest due to a problem pregnancy and the household disruption involved by having one member incapacitated not only for that but when my husband suffered a severe bought of neuropathy I can say that it's going to be very hard to keep the household functioning without adding new chores. 
It would, however, be a great time to do your research so as to be ready when the time comes that you're free of the restriction and back to your normal self. 
 
Here are the Usual Guidelines for space, for each adult, standard-sized hen you need:
- 4 square feet in the coop (.37 square meters)
 
- 10 square feet in the run (.93 square meters),
 
- 1 linear foot of roost (.3 meters),
 
- 1/4 of a nest box,
 
- And 1 square foot (.09) of permanent, 24/7/365 ventilation, preferably located over the birds' heads when they're sitting on the roost.
 
And here is an article explaining why they are guidelines, not rules:  
https://www.backyardchickens.com/articles/how-much-room-do-chickens-need.66180/