I am sure you have not caught anything from a sex worker as you used protection. If I was you, I would wait 14 days, if symtoms do not arise, I wouldnt worry, I wouldn't go out my way to get tested. Next time do not use sex workers and always use condoms. Look on the bright side, at least she gets TESTED every 3 months so that is good news that she looks after her health and wellbeing even tho she is a sex worker. If your stress carrys on, get tested to put your mental health at ease.
Thank you matlow I really appreciate your kind words and I agree with you