Hi Doctor , I Am Trying To Conceive , 18th

Hi doctor , I am trying to conceive , 18th day (April 23) of my periods , doctor has given fertigyn -HP 5000 IU/2 ML HCG injection , on Saturday we dint have contact , on Sunday night I had contacted , so will it help me to get conceive. More over I took evolution test on Sunday afternoon it was positive , on Sunday night we contacted , are we doing correct , plz help me