Could It Be Possible?

Ok as i've said b4,november 17 & 19 I had sex with my b/f....I was on the pill,but forgot to take it a lot,which I know isn't good....We used a condom one of the times.....But since then,i haven't had an actual period....I've gotten a lot of "spotting" that'z not very heavy and it only lasts like a day or two....And i've been getting some pain in the lower part of my stomach....I'm not sure if it's that I could be pregnant,or....It's something else...I'm hoping something else! Plus besides the pain in my stomach i've been having loads of headaches,"breast tenderness",peeing a lot...And other stuff....I don't know if these might be signs,or what... But I was just wondering if ne1 had any kind of answer maybe *besides judging me,with my not using protection;i think it's rude if someone says "well next time use protection" and other then telling me to just go take a test*.....Plz respond thx byebye!