The vagina looks no different. When I'm doing an exam on a patient who uses Nuva Ring, I often don't remember or realize there's a ring inside until I insert the speculum to get the Pap Smear.
It's not easy to misuse NuvaRing, but to err is human, and so mistakes happen:You can insert the new one lateYou can lose it from the vagina and not realize itYou can remove it for sex (bad idea) and forget to put it in, or have it out for too longYou can keep it in inhospitable temperatures
You cannot put the Nuvaring in too far as the vagina is closed at the top. If it is not in far enough you are more likely to feelit but it will still work.
Yes, you should remove or replace the NuvaRing on schedule regardless of any bleeding.
Yes, inserting the first NuvaRing will often shorten a woman's period.
If you removed your NuvaRing a week early, put in a new ring now.
Pessary
Yes
No, you only need to insert NuvaRing on the same day of the week every time, not the same time of day.
If it's a vibrating dildo you can put it on your clit, and put it in your vagina. Generally though, dildos go IN the vagina.
It's sexual intercourse when you put a penis into a vagina.
After a girls period! Unless you like to have bloody vagina lining on your penis during sex.
You should insert the next NuvaRing on schedule, regardless of bleeding. You don't decide when to put in the next one based on how many days or how heavily you're bleeding, you just use the calendar.