Please help! Pregnant and need advice!!

RiRi • 24 years old with 5 year old daughter, 10 month old daughter and pregnant with baby number 3 after TTC for 2 months!!
I am currently 9 weeks and 5 days pregnant for the past week I have been having severe stomach pain everytime I eat it is been happening on and off. The pain lasts for about 20 minutes and then nothing. It gets to the point of vomiting and almost passing out. I'm scared because I'm not passed the danger zone with this pregnancy. Is this something I should go to the emergency room for or wait it out until my doctor appointment in a few days. Please help I don't know what to do. Thank you in advance.