Fighting back tears, a clearly emotional Jenna was driving away from her home in Huntington Beach, CA moments ago -- when she stopped and told our photog, "I'm gonna be alright."

Jenna -- who was wearing giant sunglasses -- continued, "My babies are alright ... everything's OK .. he's in jail."

Jenna was accompanied by her father -- the man who we've learned made the initial call to 911

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