Cindy - I have not posted much to your thread but I have been following it - as a man I might suggest that cutting out sex completly might just send the wrong signal - but then does it have to be an all or nothing thing. Might you just do some "heavy petting" like when you were back in High School? You do not have to go all the way, just do enough to keep him interested. You will likely know how much that will be, be it just some nice hugs and kisses or maybe more. But whatever the amount - you will be in control of how much. I think he will know what he will need to do to score a home run with you.
just my humble opinion. - Good luck for the next 3 months.