Started taking oral pregnenolone about 8 months ago. After taking it for about 2 months, my levels weren't where my Dr wanted them so I decided to start sublingual. Started taking sublingual about 4 months ago and got my labs back today. My pregnenolone levels have tanked! It's like I haven't been taking the preg at all. I take oral DHEA and its working great. I have decided to go back to oral pregnenalone. Has anyone else had this problem? I always thought sublingual was better. I guess it just means everyone is different.