Cramps from birth control pill??

Lauren
I recently started using Aubra and its low dose birth control pill. It's my first month and the first week I had a lot of mood swings and common symptoms but I'm three weeks in now and have close to none of those common symptoms except I have sharp pain and sometimes it feels like cramps but other it's sharp on my right lowerish abdomen. It's been hurting off and on for two weeks. Has anyone else experienced this? Is it serious or just my body adjusting? My right calf has also felt cramps and numb for about a day :/