The pill, early period, ovulation concerns

Sadie

Got two questions, so I'm gonna stack them here.

1. I've been on monophasic combination pill for 3 months now, and this month my period came a week prior to my sugar pills, should I be concerned about ovulation during the sugar pill week since my period just ended (and placebo pills just started) and I'm not getting the hormones to suppress ovulation? Given perfect use - I've been on point with my time, nothing interfering with the pill - no antibiotics, no diarrhea or throwing up, no missed or late pills throughout the whole time.

2. How likely it is for a person to experience side effects again when switching from one generic to another with same dosage? I switched to a different pharmacy and they don't carry Sprintec I've been used to so far, so I got switched to MonoNessa. I'm just really concerned about my mood swings that were horrible when I just started the pill, but everything got OK after about a month.

Sorry if my questions are sorta stupid, I'm still fairly new to the whole pill thing.