PLEASE ANSWER

Jasmin
Okay so my period is due in 4 days-last night I took 3 pregnancy test (one FRER digital (yes +) one FRER line test (faint line but definitely there) and a blue dye test with a light but definitely there Line)
I was wondering if there is any chance of ruling out a chemical pregnancy?
This is my first time pregnant and I have no idea what's normal and what's not...online it said I am 4 weeks pregnant