I had unprotected sex at the end of my last period on March 22nd. April came around and my period never started. I waited a few days and never started so I took a home pregnancy test and it came back negative. So I waited a week to see if I would start. I was feeling nauseous almost every day. I was eating a lot of food and sleeping a lot. After the week was up with still no period I took another home pregnancy test and it came back negative. So I continued to wait. I would get nauseous with no vomiting, was still continuing to eat a lot, things that usually wouldn't irritate me are irritating me, I've had a lot of discharge, and I've been urinating quite frequently. After 25 days without a period I finally started on May 13th. I bled for about a day and then now there is basically just spotting and usually I bled heavy for about 5-7 days. Is there a chance that I could be pregnant and it was just to soon to show up on a home pregnancy test?

Any time you have unprotected sex there is a possibility of becoming pregnant.

Since you have started your period, but it was way late and not normal, I would consult a physician for a blood test.

A HPT normal detects a pregnancy two weeks after your missed cycle.