Need help.

I'm a bit confused wether i could be pregnant or not..... im currently 3 days late for my period.. i usually get cramping a few days before it starts but have had nothing. I took a pregancy test yesterday but come back negative. Ive had really bad bloating and lower back pain feeling a bit nauseous and getting on and off headaces, finding it difficult to sleep as having trouble getting confortable.

I have had an early stage miscarriages where i had same symptoms but was a week late for my period and returned negative pregnancy tests... Im worried that this might be the case agaib