bubbling feeling in lower abdomen? Pregnant?

Hi everyone, just wondering if this was a symptom for those of you who have fallen pregnant. I’m currently 14dpo and don’t have a clue when my period is on its way due to pcos but I ovulated on CD19. Currently CD33, feeling all sorts of symptoms but for the last few days I’ve had a ‘bubbling’ sensation in my lower abdomen that lasts for a few minutes. Was this something you exerperienced? Tests are saying negative. Getting a hcg blood test soon, Will just wait it out. Thank you 💫🤞🏻