Advice

So I feel like I didn’t have a normal period from what I’m use to the first couple days is heavy having to change my pads like 3 times but it’s wasn’t heavy and then one day I was spotting and then nothing then a light bleed took a test and it was negative I’m feeling nauseous, sleepy, little bit of cramps here and there and hungry a lot more and now that I’m off my period I wiped and it looked like watery snot with a little bit of blood what could it be could I be pregnant or not