Switching Birth Control Pills Question

So I recently switched from one birth control brand to another. Both are the combined pill and both are 28 day, the new one just has a lower dose of estrogen because the higher dose was making by left breast hurt SO bad. I read the package insert and it said to start my new pack on the first day AFTER my last placebo pill from the old pack, which I did. It didn’t mention anything about needing to use additional protection for 7 days or anything like that. I’ve looked online and I’ve found mixed reviews on if protection is needed/if it’s not, etc. Are there any pharmacists or nurses on here that could help answer my question? I forgot to ask my gyno during my appt and she takes literally DAYS to reply to phone calls.