I am 38 in a few days... eek!
Unfortunately I disagree that age is just a number - I wish it was otherwise, but it does have a bearing on your fertility & likelihood of conceiving.
In the mean time while you wait (and apologies for the unsolicited advice!!), I'd recommend getting (you both) as healthy as possible, with multivitamin tablets and exercise etc to maximise your chances, and have OPKs at the ready for when you start (or it may be worth testing them out now to find out when in your cycle you're most likely to conceive).
Good luck and I hope it all goes well come August xxxxx