Is it possible I'm pregnant?

Lets see, first day I had sex was wednesday june 8. Again thursday june 9. Got strep throat friday june 10 and didn't have sex again until monday june 13, the day i started taking amoxicillin. Again tuesday the 14, wednesday the 15, and thursday the 16. Not since. I'm on Beyaz hormonal birth control pills and didn't know until today that amoxicillin decreases effectiveness of hormonal birth control pills. My boobs have been sore for a few days and I have a moderately bad headache that won't go away. I also have bad, but not severe, nausea and my muscles - especially my neck, back, and abdomen - are very tense. I'm really thirsty, peeing a lot, and I know it's not diabetes because I tested my blood sugar quite a few times and it came back normal. Is it likely that there's a baby in there?