Pregnancy

I am currently 15 weeks pregnant but i am so tired and i am having some complications also I haven’t gone to work for 2 weeks+ but now i want to go work but when i stand for 10 mins i get so tired and i just want to sit or lay down am i the only one feeling like this i am tired all the time and after i eat I always feel nausea and high little pain in my lower tommy also should i go work or rent at home???