Cramping and abdominal pains

I’m 8 weeks pregnant today and I had to call out of work because I’ve been vomiting and unable to eat, I took a nap earlier and woke up with my entire abdomen feeling extremely sore and as soon as I stood up my lower stomach had some sharp pains that continued while I was walking, this makes me extremely nervous because I’ve had a miscarriage before and I’m trying to wait until my appointment Wednesday but I just want to know if anyone else experienced this or if this is normal? My last miscarriage happened around 7 weeks and some odd days