Is it over if I just found out my husband was still married when we got together?

We’ve been married for four years and have a child together. I thought everything was going great until I recently found out that my husband’s divorce wasn’t finalized when we started dating. He always told me it was over with his ex, and even his friends and family backed him up. But I checked public records and realized he was still legally married when we got together. I feel completely blindsided and don’t know how to bring it up without starting a huge fight. I love him, but now I don’t know if I can trust him. What should I do? Any advice?

Is it over if I just found out my husband was still married when we got together?
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