I’m afraid I’m pregnant...

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??