Attention please help me to knowing if it is I'm pregnant or what ?

#advicepls #pleasehelp I'm regularly and last January 8 to 12 is my last periods and this February is missed it until now and i used PT and its negative i wanna know if I'm pregnant or what ? My last contact on my husband on feb.12 and until now i have no periods . I want to try blood test for pregnancy on this Monday isn't good or not ? And what do you think I'm pregnant or none ?