Hi brand new me,
To answer your qns:
1. For Fengshui of the house,Direction of which the door faces is the 1st thing to consider?
The main door is the most important in any property. If the Qi at the main door is bad, the feng shui of the house cannot be that good. If it is good, generally we just need to fix the rest of the things like stove positioning, bed positioning etc etc in the house to make it perfect. Of course, we need to identify what is the exact problem that will occur to the occupants first. Feng Shui is not just about good and bad, if good, we must know what is good. And if bad, what is bad exactly.
2.Some people select house base on calculation of unit number, is numberology more impt than direction of main door for fengshui.
House number is NOT important from Feng Shui perspective. A house with the No. 444 can still be very good in terms of wealth if the main door and other factors are good. Similarly, a house with No. 888 can still be bad if the main door, stove and other factors are bad.
I am not an expert in numerology, so i can't answer this part of the question for you
3.WE have been trying to conceive, anything we can do or need to avoid in fengshui to enhance our fertility luck?
For fertility, there can be various factors causing it. If the gynae proved nothing wrong with a couple, then it could either be the Bazi or Feng Shui that is causing the problem. For a ladies Bazi chart, some are hard or even impossible to conceive. In this case, it will be difficult to conceive unless certain luck comes and clash away the elements causing this problem and in that yr, you might have a higher chance.
If there is nothing wrong with the couples's Bazi chart, then likely it could be the Feng Shui that is causing the problem. The door could be situated in a location & direction where the Qi is not conducive for kids or the stove could be sitting and facing certain Qi that cannot have kids.
Unfortunately, there is no generic feng shui cures for this sort of issues. Hope this helps.