brownish pink spotting 4 days after period

Could I be pregnant? I had sex with my husband the same day that i started my period. My period started on April 26th and it ended on April 29th. On May 4th I started having a brown discharge. I have been having this brown spotting for 5 days now and it changes from brown to pink to reddish somtimes. I have been having a little abdominal pain also. I was wondering do I have an infection or am I pregnant or am I having a miscarriage. I want to know is it normal to have spotting 4 days after my period. I never had this happen before and I am really worried. I got my period late, but it did come. Now I can't stop this brownish/pink spotting.

[kb3670]

Ive been off birth control for about a year/year and a half, and i just recently had unprotected sex with my boyfriend on May 16th. I don't really keep track of when I'm ovulating, but i got my period on May 23 and it ended May24/25 (the last day was light pink, barely anything.) It was only enough to fill up a small pantie liner for the first day, but still didn't look like my normal periods. And since it was only for a day and a half, I thought this was weird because i usually get my period for 3-5 days and last month my period came on the 25 and its usually right on time, so it was early this month.
Ive been exhausted, moody, have soar breasts, and sickness/nauseous throughout the day so i thought i could be pregnant. And today, 4 days after my period was over, i was spotting. Its barely there now, kinda brownish but this morning it was light pink-reddish only when i wiped and not a lot at all (sorry, TMI!)
I haven't taken a test because i thought i had my period, but i don't even know if that's really what was happening now.... can someone plleaaseeee help!?

[lynnmommy]

I just ended my period and its been about 3days since then and when i woke up this morning i had a light pink/ brown discharge it only lasted about 3-5 hours and thats all. so maybe someone can answer my question what does that mean????