Help I think in going crazy!

So I've been trying to conceive for 2 and a half years now with no joy, but this month like all the other months me and my partner smashed it through my fertility days and my highest chance of pregnancy days, so fingers crossed this is our month, my problem is I'm driving myself crazy to the point where I don't want to do anything just in case I am pregnant and I make the tiny bean disappear..... see crazy right! I now won't sleep with my arms over my head as I'm stretching my stomach too much, please someone tell me I'm not the only one who does this or if I am do I need help