 [ Symptoms ] gastroenteritis ive had it for over a month should i be conserned but i have not been vomiting or naushous the only thing i still have is that my stomach feels all crampy and when i eat i feel full and feel like vomiting but i dont [ Disease ] you might as not even be on the pill if you have unprotected sex with in 24 hours like most pills it takes a while to take effect in your system good rule of thumb is allow a month from time started for it to enter and take effect in your system until then us a condom