Line getting fainter

Hey ladies, i got my bfp the day before AF was due, and then had very light spotting for a couple days. It was on and off,, like I would notice some spotting when I went to the bathroom, and wouldn’t see any more for 18-24hours. I just took another test and I think the line is much fainter. It was never very dark to begin with. What do you think? Chemical? Still early? I don’t know what to do now, as I live in a country with sub-standard health care and I don’t know what protocol would be in the states for this sort of situation.