You can't test while taking PEP, if that is what you were asking. Well, I mean, you can, but your test result will come back undetectable (negative) but that is not going to tell you whether or not you've been infected. If you were asking if you could test 10 days after you've completed PEP, I've addressed the post PEP testing protocol below.
Successfully completing PEP is a very good predictor of being HIV negative, but you MUST take it for the full 28 days. If you are having side effects, your doctor can give you medications to help.
The recommendations for post-PEP HIV testing are six weeks, three months and six months from the date of exposure. If you Google post-PEP testing schedules, you will find many different opinions. I know you are anxious to have an answer, but if you want the true answer, you wait and you use condoms until the final result.
RubyWitch
The condom broke and you continued sex for up to a minute. This puts you at enough of a risk you must either test or begin PEP.......IF you are within the 72 hour window period.
Those are your choices.
RW
First and most importantly, you MUST complete the full 28 day treatment plan for PEP to hopefully prevent infection.
PEP drugs are very powerful and can make you feel very sick, which is why so many people stop taking it mid way through treatment. Your doctor can prescribe medications to help with the side effects.
After you have completed PEP, you will need to test for HIV at 4-6 weeks, 3 months and 6 months for a 100% conclusive result.
Because PEP is not 100% effective, you should continue to use condoms with sex partners while taking PEP.
RubyWitch