So I've been having a lot of symptoms of pregnancy and I still haven't gotten my period after 8 days I'm supposed to have it. it's usually exactly on point. But a week ago I took a blood test and it said negative and I just took a pregnancy test again today and it said negative so I'm confused. I've had a friend that it didnt pop up that she was pregnant until 3 months into her pregnancy and even got a period. What do you guys think?