I would wait if I were you. The risks of chopping early far outweigh the risks of chopping late.
This is just like déjà vu all over again. I think this question is asked five or so times a week if not more. People really need to educate themselves and purchase the needed equipment BEFORE they begin to grow.
The idea that harvesting late is better than harvesting early is a commonly held misperception since the risks are equal. If someone harvests early the amount of THC is the trichomes has not yet peaked so you will not reach full potency but if you harvest late the THC has begun to degrade so once again you do not have full potency. The difference is in is the amount of time that someone may harvest early or late. If the same the difference is minimal other than you will end up with far more CBN harvesting late.
THC that has not reached its peak or THC that has broken down means the same thing, less than maximum levels of THC.
Trichomes
Trichomes are small appendages that look like hairs. They are produced by marijuana, and other plants. Female marijuana plants produce certain trichomes that are a rich source of THC. These trichomes can be found in their largest concentration on the buds. They start out clear, turn a milky color, then turn amber (light brown).
The trichomes in picture 1 are clear. After the plant has flowered for a few weeks, the trichomes start to turn a milky color (picture 2). After a few more weeks, they will be totally milky in color. In the later stages of flowering, trichomes will turn to a light brown color (picture 3). The amount of time required to get to this point depends on the marijuana strain and the growing conditions.
In picture 2 you can see the stems have started to turn from a clear color to a milky translucent color.
For maximum THC content and a more cerebral and energetic high, harvest your plants when a majority of the trichomes on the plants in your garden are a fully milky translucent color.
You can wait until most of the trichomes have started to turn amber, but the resulting marijuana will produce more of a sleepy body stone than it would if plants were harvested earlier. The trichome in picture 3 is about 90% amber, with just a trace of the milky translucent color it previously possessed.
After the trichome is fully amber in color, the THC starts to degrade.
Harvesting late gives you compost.
(Pictures below are in reverse order, pic #3, pic #2, pic #1)