Can I request a test

These last couple months my cycle has been off.. Both this month and last month I only spotted really dark blood that was 10-12 days before my period... I have taken 3 pregnancy In the last 2 month, they all had a faint line if you looked at it just right, even my husband has said he seen a faint line. I have also had to change bra sizes already too, my stomach seems really firm and pants feel more snug than ussually. Even my mother in law Says I'm looking bigger in the stomach area. Then I been feeling things like flutters. 
When I went for my check up the other day and the doctor asked if there was chance i was pregnant, I said yes and would like to test to make sure if I am or not. I even told her how my periods have been.. All she did was push on my stomach and said there's no reason to have one taken.