Are Fertility Monitors Accurate?
Fertility monitors are one of many tools that couples have used to help them time their attempts at conception. Fertility monitors, such as Clearblue, allow you to be able to track and identify when exactly it is that you are ovulating during your monthly cycle.
Fertility monitors look for something known as Luteinizing hormone, or LH for short. Luteinizing hormone is always present in a woman’s system. However, around 24 to 48 hours before you ovulate, your body will experience a surge in your LH levels. It is this surge of LH levels that actually triggers your ovaries to release an egg, and for you to ovulate. When you are ovulating is, obviously, the time of your cycle that you are most fertile, and when you are most likely to be able to conceive.
Fertility monitors are somewhere around 99% accurate when it comes to detecting this LH surge. If you are monitoring ovulation for several days, and there has been no LH surge, it is likely that you have not ovulated. If this is the case, you will probably want to use another fertility monitoring kit to watch for the time when you do ovulate.
Once a fertility monitor detects the LH surge, the rest is up to you and your partner. The best time to try to conceive is the three days right after you get a positive test on a fertility monitor. However, just because you ovulate and because you try to conceive while you are ovulating does not guarantee that you will become pregnant. It can take some couples several months of trying to conceive using a fertility monitor before they are able to become pregnant.
There are several factors that can create an inaccurate fertility monitor result. If you are pregnant or have recently become pregnant, obviously, you will not be ovulating. The same is true if you have reached menopause. Some fertility medications, such as Clomid or Pergonal, can affect the results as well, and you should talk with your health care provider about timing your fertility monitor in relation to these medications.