Can i get pregnant 7 days before ovulation?

Doubtful: You could have sex once, six days before ovulation and have a 3 in 1000 chance of conceiving, because the sperm can be viable and effective for that long. It is unlikely that you would conceive by having sex seven days before ovulation.

Sperm: It is believed that sperm only survives 3 to 5 days and thus it could not fertilize an egg on day 7.

That would be: Very unlikely. But, use protection every time if you are not ready for pregnancy.