It does not mean you are pregnant. It doesn't even absolutely guarantee a good lining. Nevertheless, it is a good indicator. If you have good progesterone levels, that means that anything that is trying to implant will have a better chance of finding a hospitable place. 6.2 I have spotted, and it is not time for my period.
Implantation spotting is the exception rather than the rule.
Sometimes the procedures themselves can irritate the cervix and cause light brown spotting afterwards. Sometimes when the uterus shifts from being estrogen to progesterone dominant you will get a little bit of spotting. Light spotting can be normal, but contact your physician with any concerns. It is not yet time for my pregnancy test. You are probably feeling the effects of the hormones you are taking.