Advice please

Seren • I have a beautiful three year old daughter and am currently trying to conceive baby number 2 ❤️
I did a pregnancy test on the day AF was due and it was negative. AF did arrive 3 days early but it only lasted a day and a half so I thought it might be an implantation bleed. I have started feeling sick today like I did in my first pregnancy so is there any chance I took the test too early and I am pregnant? Thanks x