Contractions? ?

So I know .Well I think I know lol thst contraction are able to be timed and the pain gets worse and the time shortens in between them so I know I'm not having contractions but I have got a crampy feeling in my lower stomach that has been the same for the last half an hour. It feels like just before your period starts. I don't think it's contraction as it doesn't come and go it is constantly there. Does anyone know what this is? Answers would really be appreciated :)))) thank you :)