No, you should complete your prayers.

I was in a mall and went to the ladies section to pray my Maghrib salah. While I was praying the speaker came on and Salah ba jama’ah started in the men’s section. Should I have restarted my Salah with them? Broken my Salah and prayed with them

Prayer | March 25, 2014 7:10 am
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I’m non-arabic speaker. Is it permissible for me to make dua in my own language in witr prayer (i.e. raising my hand in 3rd rakaat of Witr prayer)?
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What does a person do if she is not sure whether her hand was placed correctly during sujood. I keep thinking that it might not have been, because it keeps coming into my head