Could i be pregnant?

So I've been looking online for information yesterday about the weirdest signs of pregnancy and I came to find out i have a few of them symptoms. My ovulation day was on the fourth of july and we did it with no protection which is fine cause i'm married. but he didn't came inside of me instead he came on the bed. Last week i was brushing my teeth and i noticed my gums where bleeding n felt kind of swollen so i bought a softer toothbrush n that fixed the problem...little did i know when i look up online of some weird pregnancy symptoms that was one of them..another thing thats been happening to me is that for about 3 days in a row i had alot of discharge more then normal...but now i'm fine..n just yesterday n today i felt kinda nauseated...my period is suppose to come this saturday but it neva comes on the same day..i usually get it like 2 days b4 or 1 day b4..I'll be taking a pregnancy test then..but just wanted to know if neone experience what i been going through..thanks!