Do all things happen for a reason?

OK I am a big one for believing that things happen for a reason but sometimes the things that happen creep me out.
I lost my sapphire necklace that the hubby gave me but didn't want to admit to him yet that I had lost it, so hadn't said anything. Then the other day I was vacuuming the floor furnace and there is a little piece in the floor furnace that if your not careful will and can be sucked up by the vacuum cleaner, maybe a good thing. Why do I say a good thing because the hubby took the bag outside to dig through it to find the little piece that sucked up and what did he find? Yeppers my sapphire necklace, I was so relieved that I just took the whole negative comments about loosing it in the first place in stride, they didn't even bother me, because I got my necklace back and got rid of the terrible ache in my stomach from worrying about where it was. (also suggested for x-mas a new jewelry box)
It does still freak me out a little because if I hadn't sucked up that plastic piece I would have just thrown the vacuum bag out.....so accident that I sucked up the plastic piece, greater power or weird coincidence?