Could I be pregnant and not know it?

I got my period (or so I thought) on the 5th on April. I usually have heavy periods and this time it was light still red but light. My period usually last five days and now lasted 4 days. I have not had any pms symptoms before it had started. Instead, I got them afterward. I have been feeling sick like I wanted to vomit but never do. I have been very dizzy, heated, bloated, and urinating more. Today I felt a burning sensation in my chest, right below my breast.

If this not too early to tell?

Could I be pregnant and not know it?

[nickieb85]

I would definitely say take a test to be sure...

[smjmekg]

Were you due to start April 5th? If you're worried about it you can always take a test. But if your period wasn't late, it may have just been a lighter period.

[scorpio2869]

Yes my period was due on April 5 and it came on time.  There has been times before when my period came early and sometimes late.