Should I call?

I woke up this morning to an awfully sharp pain in my pelvis then cramped for a few minutes after. I've been in pain all day. They're cramp like pains that make my stomach hard and make my belly button hurt for some reason? Baby is moving just fine but I also feel like someone, for lack of a better word, kicked me in my vagina and now it's just really heavy pressure. My back hurts also. I'm a ftm so I honestly don't know what a contraction would feel like. I haven't been timing anything because they're sporadic but with a constant gnawing pain in my pelvic area. I just want an opinion if I should call my doctor or not? I feel like they are going to get tired of my worrying.