I am 20 years old married with a 2 year old son. now I normally have my monthly vistitor on time every month but this month I showed up a couple days early and only lasted 3 days and was very light with light cramping. I have bloated in the abdomen and a little in my chest. my husband says I have been very moody lately and very tired so I took a home pregnacy test but it came out negitive and o I have had some pretty bad heartburn..so my question could I still be prego with a negitive test?