How long should it take me to get about 14 lb of muscle?

Anonymous
So my target weight is 14lb more and I would like it all to be of muscle. I've been exercising for a long time but only starting last month did I begin going to the gym. I've gained a couple pounds of muscel I think since then and have been steadily increasing the weights I lift as I get stronger. I'm 6'3 and 182lb. I'm an ectomorph so I'm fairly skinny which is why I'm trying to gain weight how long do you think it would be for me to get to mid 190s?

Oh and before people say go ask on bodybuilder site I've asked questions there before and they've never been answered so asking there won't do any good.
How long should it take me to get about 14 lb of muscle?
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