The "period" could have been implantation bleeding. The test an hour later could have been negative cos throughout the day as we drink more we dilute the HCG in our urine. Id say it probably is a pregnancy from march. Explain at your scan/midwife appointment cos they ask the first day of your last period.
After my positive I had some bleeding. I was pregnant… just had some blood in my uterus that needed to come out the natural way
Congrats :) I am not sure but at your 1st ultrasound appointment they should be able to tell you how far along you are