Am i pregnant? should i take a test?

i thought my period was starting [it wasnt a heavy flow] but my boyfriend wanted to have anyway... so we had unprotected , & he came in me twice... anyway my period stopped the next day, & hasnt came back on... could I have gotten pregnant? we had like 2 weeks ago but that was protected... so im thinking could i have gotten pregnant, is that why my period stopped? should i wait and take a test? we really want a baby, so...hopefully i am?