I just don't know

Hey ladies.. I was supposed to start my period 9 days ago and still waiting. Everyday for the past 4-5 days I have felt very neasous at various times in the day... never actually throwing up tho. Me and my bc always use protection. I've been late before but never had the nasea part. I also feel like I pee a lot more, but that might just be me.. do you think I should test? And could I be pregnant?