Idk... I'm a nearly asexual lesbian on birth control, but for me they're actual meds so I won't stop using them. I had to before as I was sick and my doctors wanted to be sure I could still menstruate naturally. Well I couldn't, but eventually I could and they were just as painful and irregular as before I started taking them at all... I tried to stop one more time but again, painful and irregular... Painful as being unable to walk, crying and screaming from the pain. On pills, I get light cramps and my periods last 3 days + I know exactly when it happens (so I don't accidently wear a skirt or something)
I had acne the entire time since I hit puberty (at age 7) till I became vegetarian... Along with skin rashes from allergies. At least I know my allergies now and outgrew some too, I'll only have to deal with my yearly heat allergy now lol (but that doesn't affect my face)
So yeah, I still had acne while on pills, I'm still on pills now and maybe one or two pimples if I'm nearing my period, but nothing else. All I did was stop eating meat so I doubt it has to do with your pills... But of course there are different brands and every body is different.
Also, how are you feeling mentally? Changes in weight and skin breakouts can be caused by too much stress...
If you continue to lose weight without explanation, might wanna get your thyroid checked... I suffered from Graves myself, not fun... I'm off meds now but I still have to do yearly checkups. It can come back and no one knows when (could be next year, could be when I'm 40)