2 Day period 😱

This was my second month off birth control. My first period off of birth control was regular (heavy about 4-5 days). I used OPKs this month, as we are trying to conceive our first child. I made sure we BD during ovulation. AF came a day early (early Monday morning). Usually I completely saturated tampons. My flow was not too lite, but not very heavy 🤷🏼‍♀️. This morning (Wednesday), I noticed the flow has completely stopped. I took a pregnancy test to ensure the bleeding was not implantation bleeding- it was negative ☹️

Has anyone else experienced this?