Laura Govan is not the "whore" you're looking for, Tamar Braxton ... this according to Laura, who seems to have a strong suspicion about who started the rumor Vincent Herbert got her knocked up.
First things first ... Laura wanted to make it clear she is NOT pregnant. When we got her at LAX Thursday she admitted she does know Tamar's estranged husband, but clarified she doesn't know him "that way."
Remember, Tamar claimed Vincent had gotten some "stupid broke ass whore" pregnant.