I'm 5 weeks pregnant and i just ate 1 pound of crab legs and immediately after i feel sick to my stomach. what can i do?

Allow some time: Nausea is common in early pregnancy. A pound of crab legs is a significant amount although I assume you have eaten crab in the past without issues. Wait a while so your digestive tract can pass on the food. You might, if the nausea gets bad, have to vomit which is yucky but will probably get rid of the symptom s. You will notice varied dietary changes during your pregnancy.