Possible pregnancy?

I know I wouldn’t know for sure until I take a test, but since yesterday I have been spotting. I was thinking I was going to start my actual period, but it’s only been light blood (which isn’t normal for me) I’ve been getting all of period symptoms, but not my complete period. My breasts are very sore and my cramps are there as well! I did have unprotected sex about a month ago when I was getting off my period and he did pull out and I know there’s always a possibility and a higher chance. What are you opinions? I really need them right now