Lowerback pain

Im 6 weeks 2 days pregnant. Recently ive been experiencing lower back pain and especially at when im sleeping on my right side i constantly moves because of the pain. And i also experiencing cramps and abdominalpain along with the lower back pain & another thing on the left and right side it tender when i press down. I also have interstitial cystitis. should i be worried or is it something i should be worried about.