transiting moon and fertility

[katence]

Hello all,

I read somewhere that you can determinate your fertile days by the transiting moon aspecting your natal sun or something like this. If you know more about this can you please explain how can I calculate and recognize this aspect each month :59:
I am attaching my birth chart with current transits to this post.
Thanks,

[katence]

Shining Ray, thanks on the valuable information