I am 19 years old and just got married, me and my husband haven't really talked about having a baby yet, but I think I may be pregnant. I've been very moody the last week or so, along with breast tenderness and nausea. I took a home pregnancy test about a week ago... the day before my missed period, and it was negative. I still haven't started my period. I've started developing a strange rash all over my body... on my ribs and breasts, my thighs, and my arms... it is extremely itchy. I get rashes a lot because I have eczema, but this isn't eczema. I don't know what it could be... could it be related to pregnancy... how long should I wait before taking another pregnancy test?