Been using condoms as contraception, had sex a few times over the past month, once without using one to start with then he put on one (we were drunk lol). Anyway my period is usually regular, but I'm 2/3 days late. Took a test this morning and got a negative. Usually have cramping before I bleed gut nothing just a few sharp pains the other day. Just feeling tired and peeing a but more. Is it likely I'm pregnant?