Changing dose on birth control ???

Hey, just wondering if I was originally 129 and now I’m 140 do I need to talk to my gyno about changing my birth control mg? Btw this is healthy gain weight not necessarily from the pill, but from working out and I wanted to gain the weight. However I had spotting randomly 2 weeks ago just one day. So idk if that means the birth control isn’t balanced or something. Plus my face recently has been freaking out and breaking out where I normally don’t. So should I get the dose changed ? I really liked this brand (ocella) it helped my skin. (I’ve also been on it for about 8 months)