Is pregnancy possible after protected sex and a regular menstrual cycle?

I had protected sex on Dec 11th... for a time more than a week after that I had my regular menstrual cycle. It be the normal amount of time and the flow be as usual. I went to the doctor today for an unrelated issue and give the doctor a urine sample. It didn't detect anything, but I don't know if they automatically check for pregnancy? I guess I'm basically stressed out because it was my first time have intercourse, and although protected, I've been worrying roughly speaking the chance of pregnancy. Your secure, you had your extent which makes it impossible for you to be pregnant, especially a week after because sperm can merely live in body 3-5 days
Having you extent a week after unprotected sex, much less protected sex money your not pregnant. Its impossible. Women can be pregnant and have vaginal bleeding but its not menstruation because menstruation is the striping of the endometrium and expulsion of the ovum. So within your case your not pregnant because it be regular symptoms where pregnancy is just spotting. Ask any doctor. you had your interval your 100% safe
in good health having ur length before sex doesnt mingy u wont get pregnant. it depends on if u return with it on a regular shcedule afterwards. and since u were protected, there's a correct chance u aren't pregnant, but bear another test only incase. good luck next to everything :)