Extreme Lubrication During Sex. All Tests Normal. Remedy?

I am experiencing EXTREME wetness during sex. To the point where it becomes basically a waste of time if orgasm our goal. I have tried limiting foreplay,and just moving into the act more quickly. We've tried different positions, especially those with my legs closed or pressed together-which I find ultimately unhelpful and intimately isolating. I have followed up with my OB/GYN and she can't give me any answer as to why other than hormones after my pregnancy, but its been two years since I had my last child. I was tested for several different infections and STD's, all tests have been negative, and I seem to be in great Vaginal Health. I do my Kegals everyday, keep a healthy diet and exercise routine, And no Doctor has had any solution thus far.. Is there anything I can do to decrease the amount of natural lubrication I am making before and during sex?