Will my diet pill and birth control cancel each other out?

I currently take trimspa and just switched birth control to necon. will the ingredients in the diet pill cancel out the birth control pills?

Will the diet pill make you pregnant? No.

no, the two pills work on completely different areas of the hormone spectrum
absolutely not if the diet pill is FDA approved you have nothing to worry about. Good Luck with the diet!
The usual answer for a question like this is to ask your doctor. But, the correct person to ask is not the doctor, nor us, but the pharmacist. They are super-trained on such interactions, and a quick phone call during business hours will give you the information you need.
The only pill that I have heard cancelling birth control pills are antibiotics - check with your pharmacy or doctor!@
I haven't ever tried Trimspa, but I have tried Hydroxycut and other supplements like the original MetaboLife and Stacker, and Xenedrine, and have gotten mixed results.

Like others have mentioned, a diet supplement won't conflict with a birth control pill - they work in different ways.

If you're looking to supplement your diet plan, you'll most likely want a good metabolic booster and appetite suppressant. I'd suggest taking a look at Herbalean. It does have Ephedra, which was unbanned this year by the FDA - so it's legal in the US again. It also has Hoodia for the appetite suppression, so the combination works VERY well for me.

I've been taking it for a couple months now, and the Hoodia keeps me from snacking and gets rid of the sweet cravings, while the Ephedra gives me a good energy boost through the whole day.

It's made by the original makers of MetaboLife, and they've improved the formula with Hoodia and 77 trace minerals and herbs. It's also an extended release formula, so you won't get the jitters from the Ephedra like you would with MetaboLife.
http://www.herbaleaninkc.com