36 weeks and 4 days pregnant am I dilating already

For the past days I’ve had a lot of pelvic pressure and lately it’s been a lot of poking down there that I’ve had to stop in place while I walk because of the pain. I’ve have difficulty’s getting up from the bed or from sitting down when I feel the sharp pain. Now I just feel lots of pressure running from my pelvic area to my behind that when I go to the bath room I feel like if I need to push something out but nothing comes out and just feel pressure specially when the bb moves a lot plus gotta go to the bathroom every 4 minutes. Could it be a sign of dilating?