Question around Birth Control Pill?

Being the paranoid worrier I am, I was wondering if I should even bother taking my BBT (basal body temperature) in the morning. I basically got my spell last week but am for some plea still worried about pregnancy. My BBT this morning be 98.5 (after a few minutes of waking up and walking around)..but is this because of the hormones in the pill?

I've read sites that utter not to bother using this method when you're on the pill. So should I just stop worrying since I of late got my spell last week and also have a low BBT then?
Answers:

How long does davocet remain in your system?

The pill is fairly effective if you are studious within taking it. If you are really worried about pregnancy I would suggest a condom next to some spermacide.

What the earliest age you should have sex?

If you are that paranoid, you probably should not be have sex. or, use a condom along with the pill if you perceive that you need more than 99% protection

Er i hold some problem?

There really is not point in taking a BBT while on BC for the simple fact that the hormones trick your body into thinking it's pregnant. So, you don't ovulate and that will create low temps.(This is why many woman experience pregnancy symptoms when they first start taking the BC)

Like adjectives medication birth control is 99% effective if taken as prescribed and that system not skipping doses and taken at fairly regular time. And yes stop worrying. If your genuine worried take a home assessment to ease your fears.