Could I be having twins???

Jessica
So I'm 8weeks on Wednesday I don't have a midwife appointment until the 30th and they will arrange my ultrasound then, however I'm convinced I'm having two.
This is my third pregnancy however this one is with a new partner. 
I'm showing already I feel huge even though my partner says he can't tell but I'm normally a size 6 so any change is noticeable! My boobs hurt so much and I'm so tired and hungry however no morning sickness. I just feel like it's different this time like I can feel as though it's two.. Am I crazy??