How Long To Wait After Gardasil Vaccination To Have Intercourse?

My question is in regards to the Gardisil vaccination. I'm 21 and a virgin and just received the first shot of Gardisil yesterday, May 6th. I am wondering how long I have to wait to have sex after having the vaccination. Is it okay to have sex after the first vaccine, provided we use protection or do we have to wait six months after I've received all the shots.