Which part of your awrah are you referring to? If it is the hair, simply fixed it and continue your prayer as exposing it a bit like this unintentionally is ok.

In the very unfortunate event that I realize that my awrah is not properly covered while in the middle of a prayer, should I complete the prayer and then repeat it, or should I stop the prayer, fix the problem and then restart the prayer?

Prayer | February 23, 2017 4:07 pm
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Is there any forbidden times that you are not allowed to pray tahiyyat-ul masjid?
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my question is in regards to tahajud/witr, is the end time for tahjud/witr just before the Azaan of Fajr or is it till you have started praying Fajr, for example if Fajr starts at 5:30 and sunrise is 7:20 and i set my alarm to try and wake up and read tahajud and witr and i wake up at 5:35 do i then have to do qaza of witr and pray fajr or can i read witr and then pray fajr