AF is due today but cervix closed?

Hmm well, I never chart cervical position (never been able to feel it, I have tiny hands lol) so I don't know enough about it to really say for sure but that sounds quite promising. I would expect your cervix to be low if af was on her way. The line on the pregnancy test is invalid taken that late but I have a feeling you may be and your hcg just isn't very high. Wait at least a few more days, preferably a week and take another test. Yes I know how hard it is to be patient! Good luck!