hi, i recently had a shorter lighter period with some spotting 4 days before period should begin. i m not on any medications, so during my period i took a digital home pregnancy test with a conception estimator. it came out pregnant 1 to 2 weeks, 2 days later i did the same and got the same results. i thought because i was on my period it was wrong or a chemical pregnancy so today i took another digital with weeks estimator and it came up pregnant 3+ weeks. does that mean i m pregnant? would the weeks estimator not have risen if it was a chemical pregnancy? also i did take a dye test with lines last week and it was negative. i m so confused.