advice please

Hello ladies am 6dpo today since yesterday I've been feeling some cramps but this morning it gets worse only on my left side, it hurts really bad I don't have any bleeding.. But it feels like my AF is about to show up.. The cramps is still there but not as bad as this morning what I want to know is if it continues should I go see a doctor??? Did anyone ever feel like this and what did you do please any advice is welcome ??