If your going to temp vaginally you have to stick with that the whole cycle you cant go back and forth as you will get different readings,
The coverline is if you have the same temp for more then 4 days, in you cycle it gives you the average of what your body is, So when you start getting a increase in temp then it would be above what the regular temp would be, the coverline..
thanks fo the comment. i just have one question what is the cove line? i have also noticed that when i temp vagionaly my temp is higher then orally. i think thats the road im gone take because that seems more accurate.
To begin BBT is easy to do. You must start temping at the beginning of your cycle, doing it everyday at the same time before you get up. When you O your temperature will go up .4 degrees either over a couple days or right after O. If you have 14 days of consistent temps then you are more the likely pregnant but some people have longer cycles.Also some people get implantation dips where you temp drops a lot in your TWW. If your temps are low to begin with i wouldn't worry that much if your temps are normal as long as it goes over the cover line. There is websites that can help you track your temps and determine if you have ovulated.
F e R T I T Y friend is one.
Just type in google basal body temperature and it will give you all sorts of great sites