Please help am I having a miscarriage :(

I'm bawling my eyes out pretty sure I'm having a miscarriage. I'm only 5 weeks, I starting lightly spotting this am around 6 and now it's 3 pm and I'm heavily bleeding get with small clots....I can't tell if the slight tightness in my tummy is because I haven't eaten today or because I'm loosing the baby :(I'm not having bad cramps though... slight pain in my left side and also that could be cause I hadn't eaten possibly...I'm gonna try my hardest to eat and see if it does away....some insite would be so incredibly helpful though..