HELPP

About two weeks ago my abdomen area was hurting really bad, felt like very intense cramps and because my periods are irregular I just waited for it to start but it never did. Thursday I noticed a pungent smell, very similar to fish so I made an appointment to go to get it checked out. I was scared because I had sex w a new partner the same week. I didn’t wanna hear that I had gotten an STF. But when Monday rolled around and it was time for my appointment everything was normal so I skipped out which was a horrible mistake. Because about a week ago I noticed my discharge was a lot more sticky and clear which it is normally whitish. My vagina was very itchy and burned when I went pee so I was looking into it and I thought it might be a yeast infection but I was going to make an appointment to get it checked out anyways. Well my luck the doctors office was closed for the weekend so now Sunday night early Monday morning I have noticed a odor. Smells like fish. Which was after having sex w the same partner. It seems to have cleared up when I stopped having sex and the second I do have sec it came back. I’m a very clean person and have never smelt this before until these past two weeks. My discharge is back to normal and it no longer itches. Yesterday I thought I got my period but it was just spotting. But the smell is still there . Anyone know what it could be? I’m making an appointment tomorrow morning but what should I suspect??