I am 4 days late on my period, I’ve been having nausea and slight cramping, also white silky discharge. I have been pregnant before, but had a miscarriage. It’s been 7 months since and my husband and I have been trying until now this happens. I just went to Walmart and came across a 88 cent pregnancy test, took it at home and came out Negative? What could it be. Could I be pregnant and the pregnancy test be wrong? Should I test early in the morning tomorrow with a brand test?