Theres no reason to be worried. You used a condom and you have made sure that they werent broken
The only way hiv can spread is through
1) UNPROTECTED vaginal or anal sex
2) sharing syringes.
As you were protected , you werent at risk
Theres no need for a test
"Therefore, I checked the used condoms by filling them up with water to check if the condoms broke."
This test not only assures that condom was intact but also implies that you have issues with anxiety, it's is seen historically that people who do this after intercourse have paranoia with STIs and sometimes they test for no good reason. An appointment with a therapist should be the right way to go forward, this can help eliminating such irrational fears.
You're very smart to use condoms every time you have one of these encounters. As long as you keep using condoms every time, you have no reason to fear HIV. Although HIV specialists do suggest that any sexually active adults get tested for HIV at least once a year just as a general rule for maintenance of health. But it's not a requirement, just a suggestion.
Your question has been fully answered that you had no risk. We wish you the best.
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