Is there any chance of getting pregnent?

hi, m a newly married person...last 15 may we had gone 2 hnymon..there we had made love nd used protection..bt once my husbn ddnt use condom 4 a few moments...now 21 may was the date of my period..bt still it is missing! Am i pregnent? If so what would i do? We dont want baby now.plz hlp us..plzz