It’s been 39 days since the start of my last period and my period is currently a week late .. I’m just 21 I don’t have any medical issues and I’ve know my period to come maybe days late but never a week .. it’s February 5 .. I had my last period December 28... I’m with my boyfriend of 3 years so we do not use condoms .. should I make a trip to the ER or can it be just super late ?? HELP PLEASE