The condom came off, help?

Last week my boyfriend and I decide to have , we used a condom to be safe since I didn't have my pills. But during the I noticed it had came off and told him, he put it back on. Its been a week since that has happened and now I wake up felling nauseous and fluid coming out of my . Am I pregnant for the second time, or is this a false alarm. I don't want to go to the doctor yet, since I'm not sure.