Anyone get pregnant on NuvaRing?

I'm on my 5th week ok nuvaring, I just had my period 4/28-5/2, but gosh I feel pregnant! Constantly having to pee, nausea, if I don't eat when I wake up I feel like I'll pass out, starting to want naps lately and craving black olives and I CANT STAND black olives, achy like in getting a cold, stuffy nose (which I've had all these signs with all my pregnancies)I don't see how it would be possible but I did conceive my oldest son on the pill. I have 3 kids so I know how my body acts when pregnant! I put it in for 3 weeks, take it out for a week to get my period, then just put a new one back in this Monday. I do take it out for sex but always put it in right after we clean up and stuff. So my question is, have you or anyone you know gotten pregnant on the ring? I thought it was supposed to be stronger than the pill but I just read that it has the same hormones as the pill and the pill didn't work for me! 😳😯