Missed Period

Lucy

There could be a possibility i’m pregnant, i’m just confused. I’m 4 days late, i took a test 4 days ago and it was negative(evening), then i took another yesterday and it was negative(around 2pm). Me and my partner have been trying for a baby, i’m just confused as to why i’m late and i’m having negatives, i’ve not felt stressed or done anything different within my lifestyle. When’s the best time to retest?