No. The only thing you are allowed to take is regular strength Tylenol without consent of your OB. During part of the first trimester, they will let you take a very limited amount of ibuprofen but that is very limited and circumstance based.
NO!!! DO NOT TAKE ASPRIN OR IBUPROFEN WHILE PREGNANT.
No. There is such a thing as a one-baby-aspirin daily dose for when you are trying to conceive, but they ask you to discontinue even that small amount after you get pregnant.
You are allowed to take both regular and extra strength Tylenol. Take care!