 [ Symptoms ] husband and i had unprotected sex twice and twice he ejaculated next day i get my period can i still get pregnant  we want to have a baby but i want to know if it is possible if i could become pregnant if we had sex and the next day i get my period my period last month began on the 13th so i am late two days [ Disease ] well you pose an interesting question to say the least i give you credit for creativity i can see how you might think such a system might work in theory however in practice i can not see this working and i advise you not to try it think about it for a moment using a vacuum system to remove urine and human waste would require a pretty tight seal between the device and the body how would you propose to seal the device to human skin would you place a man is penis inside a vacuum hose for example so when he urinates the fluid is sucked down the hose into a collection container this is a very bad idea indeed likewise how would you propose to seal a vacuum hose to a person is anus i would be pretty curious to view the schematics for this there is no type of vacuum system i know of that is designed for the purpose you describe i advise anyone reading this not to try to use a common household vacuum cleaner for this purpose but like i said i give you props for creativity and if you do manage to dream something up that is viable i would slap a patent on it and start raking in the money wishing you well