Hi Halleberry, what a pickle. You have my sympathy and the strain this has placed upon you is obvious through your posts.
Reading the whole thread, the various different views and suggestions can be condensed down to two approaches:
- The 'practical' one - this is where posters have focused on dates, timing, probability and consequences.
- The ''principled' one - this is where posters have looked at ideas such as honesty, morality etc.
And both approaches have been evident in your own posts, as you have swayed between hoping that the practicalities (i.e. a small percentage likelihood that the ONS chap is the father - I think you chose 5% as your figure) will outweigh the principle of being honest with your partner.
Time and again, you and other posters have veered between what is right and what is likely and I think this toing and froing has exacerbated your plight, not least because you clearly haven't been in control of this.
There are merits and dangers on either side, and we will all have our views on what is the morally right choice here.
Now, you appear to have come down on the practical side and are going to hope beyond hope that the maths comes out in your favour.
Having decided which approach to adopt, you must (I suggest) now stick with it, come what may.
Be happy in your choice and accept its consequences and do not deviate for one minute. In so doing, you have regained control and this, in turn, will make things easier, although it may not feel like it at times.
I wish you the very best.