Not sure if I'm pregnant or what is going on.

I've been trying to conceive for awhile now, well recently I had AF Nov.15th, lasted about a week and a half. Then I was bleeding again 3 weeks after that, light bleeding, with clear discharge. It was still there for a week and a half, my normal AF is never regular, and never light. Well then I had a feeling I was pregnant. I was drinking (because I think it was AF) well it made me nauseous, so I got sick. Well, I haven't been able to eat spicy foods or meat without throwing it up. I've been fatigue, nauseous and my temp is always up in the mornings. I've taken 2 tests but both negative. Now tonight, I was spotting. I had only 2 spots of red blood and it stopped. I'm not sure what's going on but I'm being very careful with what I do. Can someone help me??