Suggest Treatment For Nausea,frequent Urination And Fatigue

well hi my name is krystal i need help with a question well me boyfriend been have unprotect sex and im not on no brith control at all so lately i been feeling so bad like so sick such as ( im soo tried , Nausea so bad like i want to Vomitting it really hurt, vomitting for no reason at all,Fatigue , the need to sleep all the time, the changes in my Appetite such as im so hungry but when i eat i get sick or smell of the food make me sick Frequent Urination i go bathroom so many time a day but period came down last month on the 3 of june but sex 3 time that month but then it came agian on 1 of july but we had sex 2 time this month please help i feel so bad