A little worried

Got home and now I am in a lot of pain... I am having a lot of pressure down there, and it feels like I'm going to pee myself if I try and get up from sitting... And I have a lot of pressure on my belly.. I can feel it getting tight, on top of the pressure.. And time to time feels like menstral cramps... I can feel baby moving like crazy.. I'm just not so sure about this pressure feeling.. I don't want to go to the hospital, but will if I have to.. I'm not having contractions.. It's just the pressure that worries me.