To explain a few points that I mentioned above. One is more spititual on Shabbat (neshama yeteira) and in E”Y. Therefore closer to coming true. But it seems that neither of which is relevant here.
There is a chart, I think from Rav Hai Gaon, which lists the days of the month and their significance. For the 27-29 of the month, it says “It will turn to peace and rejoicing.”
About teeth falling out. The idea mentioned is similar to the Bar Hedya story I cited. You mentioned that you do not have children, but according to Rav Hai Gaon a sister is included in that.
I am at a loss. The timing is good, but the dream says “good”. Always say a dream is good, because they may come true based on the interpretation. My advice is to give tzedaka and daven. Last year I had a couple “good” dreams that pointed out something “good” was going to happen soon, and even the dates pointed out something “good” was soon going to happen. The second dream fell out on Shabbat. I fasted and davened. After Shabbat, I gave a sizable donation and davened some more. A week or two later, I got a good dream which seemed to say that something “good” had passed over.