how to know we pregnant?

Nak tanye ni..klw ade yg sudi comment..comment je ye sbb sye btol² perlukan pndapat korg...period sye tk teratur mcm mne nk thu pregnant or tk pregnant ?..sbb semenjak dua mnjak ni skit² je kpla tpi tk mual laa pulak..klw p klinik nurse just bgi ubat tahan skit je..sya tk tw symptom² org pregnant ni