Weight and Birth Control

I started taking the combination pill at the end of January 2020 and I weighed around 150-155. I’ve lost some weight since then, and I weight around 135-140 now. Should I talk to my doctor about a different birth control? I haven’t noticed anything out of the ordinary since I’ve lost weight or the whole time I’ve been on the pill. I’m just wondering if there is possibly a better option for me since I’ve lost 20 pounds. Does weight play a big part in the effectiveness? Just looking for some advice or others experiences.