Im on Phetermine

Hey ladies soo im on phetermine do to being overweight so far i have lost 10 pounds in 2 weeks but this is the crazy part!

I am late 6 days now no period ! So have any of you ladies that had taken phetermine for wait lost affected your period in any way? I called my Dr who prescribed it and she said she has never heard anything about it affecting woman and their period in the 15 years she has been prescribing it. I took a pregnancy test and it was negative! Any body has had the same issue while taking phetermine for weight loss?