cramps/pain

Ja

i am 21 weeks today and i dont know how to explain this mild pain ive had the past couple days other than it being like cramps, and it kind of feels like i have to use the bathroom but i know i dont have to because ive tried and even when i have it dont help get rid of the pain. Its right in my pelvic area where i feel babys movement the most, i dont believe it to be round ligament pain because i still get that when i sneeze or move to quickly and its nothing compared to the pain i have now.. any one have any advice on what it could be and whats causing it? baby moves around normally like any other day, kicks have been getting stronger thats for sure too.