2nd pregnancy 5 weeks cramping

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I do notttt remember cramping this much with my first.. im having so much cramping all over, especially on my left lower side. I also had a c section 2 years ago so I've heard that can cause more pain. Anyone else have more pain during the second pregnancy?? I have a dr app in about a week and a half for a ultrasound. Hcg has been doubling great. Im 5 weeks 3 days