“Will a change in dosage for birth control matter?”

I take birth control for cramps and heavy bleeding. I do have a history of headaches and migraines, but those only started after a concussion from a couple of years back. I am currently taking the Blisovi (1-20mcg) but I have had many side effects (nausea, hot flashes, stomach aches, anxiety, panic attacks, migraines) so I asked my doctor if I could switch back to the one I took before. I was previously taking Lo Loestrin (1-20mcg) and I had very good results from that as well as only having headaches and light nausea. But when I picked up the prescription, my doctor prescribed Lo Loestrin in a 1-10mcg dosage. I'm just wondering if this change in dosage will lessen its effectiveness and or cause more side effects?