So worried

Ang

Yesterday was my 5th 12 hr shift in a row I have one more today then off for 3 but I started having bad cramps intermittently and again this morning..I’m so worried 😧 I’m 7 weeks I have my first ultrasound on Thursday but this is when I miscarried last time. I’m on progesterone so I know I won’t bleed. Anyone else ? I’ve had mild cramping this whole time but this was worse