House addition and pregnancy??

We have decided to put an addition on our house in the spring, however, we were also planning on TTC around the same time...I've heard mixed reviews on whether or not this is a bad idea. I don't stress easily, now with that being said, I can't speak for how I will feel during my pregnancy. Should we wait to TTC until after the addition is done, or do you think it won't matter? 

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