There are indeed some disadvantages of having sex everyday. Sex is a beautiful thing and in most cases healthy, but there’s a line when it might just be too much. It involves negative physical and mental consequences. Sex might become a chore instead of romantic and loving intimate experience. You may also catch an STD if you are having sex with multiple partners. Sexual health and sexual safety are very important, so you should always practice safe sex. Also are you already prepared to have a baby? – Having too much sex, can result in pregnancy.