Can I be pregnant?

Same here..
Had a miscarriage 2 months ago at 6 weeks..
Always had a regular cycle of 30 days.. now I'm 5 days late..
Been feeling nauseous for a while (all day), sore and tight breasts..
Did a test yesterday afternoon and it came back negative.. still no signs that my period is coming..
Still sore breasts, when I eat it feels really heavy on my stomach, I'm emotional..
Does anyone have any advice ??

Don't really get why you're asking here if you're pregnant haha. Get tested by your GP if you think you're pregnant, simple. Because yes, you could be pregnant, but it could just as well not be. What someone else's experience is doesn't say anything about you. Just test yourself otherwise you'll keep doubting and feeling unsure. Your GP can at least give you a real answer! Good luck!