Possibly pregnant..

I'm 18 days late for my period, I don't know my exactly cycle length but it's been 18 days since a month after my last period. For the last two days I've had off and on light pink and a little Brown spotting. Tmi but only a couple times when I wiped and like 4 tiny specs in a pad I put on earlier just in case. I've cramped a little this past week, slept a lil more than normal, and have had a few other run ins with possible symptoms of pregnancy... I just don't know, please share your advice and/or thoughts.. If more imfo needed I'd be happy to share.