Last month I was supposed to come on my period on the 11th it started but was no more than a ten pence piece of blood for 2weeks it then stopped ever since I have been feeling sick lots of heartburn and wind but am still testing negative. My mother wasn't medically diagnosed until the 5th month due to low levels of hcg is it possible it will happen to me ?

Make sure you are using first morning urine when you are testing. Since your period is most likely not due yet, you should wait another week or so to see if it comes before testing.

I was told by the nhs to test morning last month just after I had stopped spotting will try again after my next period :)