I recently took a pregnancy test because I have been having irregular periods, moodiness, milky stuff coming out of my breasts and most recently, nausea and constipation/bloating, but the pregnancy tests both of them had really barely visible positive lines, am I pregnant?

It is possible that you are pregnant as HPTs are more known for false negatives.

If you are concerned it is in your best interest to make the doctor's appointment as soon as possible so that you can begin prenatal care.