Helpful advice from anyone?

Can someone give me helpful advice whoever has gone through this...... Okay so I was suppose to get my period two Fridays ago... I'm 11 days late now and have a bloated stomach to the point my stomach is hard(I know the difference cause I'm on the big side and it's soft always) nauseous but not to the point that I throw it up out... Its going back down when it comes up.... I'm breaking out on my face... I'm constipated.... Having headache everyday and I'm also urinating more than usual...What should I do? I also keep getting negative HPTs and got ONE blood test negative on Saturday.... I am not stressing but it's weird to have my period late when I'm always on time and have 28 day cycles when I'm on 40 days now... Anyone else experience this?