Confused...need thoughts

So on 11dpo I did a pregnancy test had so many symptoms and thought it was my month. Af due Dec 31st Af ends up coming Dec 30th a day early. It was moderate amount the 30th, kinda heavy the 31st and now hardly anything at all the past two days and today nothing at all. My period is always 5-6 days and heavy for most of it. I dont get why it was so light. I almost want to do another test again cuz I’ve heard of girls having a moderate amount of blood and still finding out they were expecting but don’t want to waste it and see a negative when I have been bleeding some anyways. Any thoughts anyone had a “slight” period with a little heaviness one day and still were pregnant or am I just having a weird period?