safe sex with a sex worker

[human88]

hi,last night i had protected vaginal sex with a white sex worker,she said she's 20,and that she has always done sex with a condom and she gets tested every month,i had vaginal sex with a condom on for like 10 minutes in three different positions,and then i ejaculated inside her,i took my penis out,the condom was not broken and my penis was covered more than 3/4 with the condom on,then i grabbed the condom from the opposite side of my penis tip and took it off,she took it and disposed it off.I am concerned that i took it off the wrong way,i should have grabbed the condom from the penis tip and pulled it off and that her vaginal fluid which was on the condom may have touched my penis head...
Was their any std or hiv risk,should i get tested?
thanks

[Teak]

Just the head of your penis.

[human88]

Hi Teak,thanks for the quick and precise answer,i have a general question that how much of the penis should be covered with a condom to be considered safe because sometimes the condom does slide downwards,thanks

[human88]

thanks