I was ovulating during the middle of February. my significant other and I had a lot of unprotected sex where he did not utilize the pull out method. exactly one week after the last day we had sex I had a very short period or so I thought. it was about 2 maybe 2 1/2 days long at the end of the month. then I had a 2 1/2 day period during the end of March and just spotting for 3 days at the end of april. normally my period should be the beginning of the month so i m not sure if those are late or early. I ve never been pregnant but I ve been experiencing some odd symptoms that I looked up and could be linked to pregnancy. the symptoms are fatigue, a lot of nausea, back pain, slight cramping but mostly just a weird feeling in my belly, heightened senses but nothing that s been making me sick, headaches at random, slight dizziness and mood swings. I took a pregnancy test earlier today and it came back negative. i m on a boat that has a small clinic but not a hospital so i m trying to figure this out kind of on my own. could I be pregnant even with the spotting and short periods?