PLEASE HELP Exspired NuvaRing and Pain and BV

So this is my first time taking Nuva Ring. It’s also my first birthcontrol my family is very open about talking about these kind of things, so I knew what to exspect. Before birth control my period was fine maybe a little painful here and there but overall as good as period can be. After taking the nuvaring within the first week I had green discharge and itching. I started taking antibiotics (unrelated to my vagina I was actually sick) but it started to cause it to curdle and smell like spoiled milk. After taking out the nuvaring for a week I had sever pain (it’s been almost 2 week now). I’m feeling sharp piercing pain. 😭😭😭 I went to my doctor and she said I had bacterial vaginosa (BV) and just gave me more antibiotics but I feel like this isn’t a normal symptom of BV. The pain is so intense. I looked at my nuvaring and realized it was expired !I don’t have an STD. If anyone had a similar experience or advice Please help.