it does sound like its possible, how ever, ususally that close to when you have a period wouldnt be possible, but id wait to see if you are late in july, and if your period is still late then do the test, even if he doesnt ejaculate and he doesnt use a condom or there is nothing to prevent it, there is still a chance, id recon waiting till july when you would normally expect a normal period if it doesnt come and your a week late do the test then, it could also be a missed period, sometimes iv had it loads your body doesnt give you a period and you can feel all those feelings, its happend to me, and then next month a period, so there is also that too, i hope this helps a little.