Any advice?

Ok so even tho I’ve been in birth control for about 7 months. I had LOTS of unprotected sex last week. He finished in my every time. Because like I got on birth control for the use of no condoms. But anyways it could be because I immediately put my new ring instead of me bleeding that week. But I’ve been a little crampy. And had a tiny bit of pink discharge. Literally that’s my only symptoms. So I’m thinking it’s just my body isn’t use to the hormones. Do y’all think I’m okay?? Like not pregnant because for one I think I’d be too early for any symptoms anyway.