Hi, I had gone through your query and understood your concerns. Ibuprofen should not be taken in pregnancy, especially in 3rd trimester. For the couple of doses your friend has taken, don,t worry she is still in 2nd trimester and also a small amount is very unlikely to cause any problems. To be on the safe side, if she is looking for pain relief while pregnant, stick with acetaminophen. Acetaminophen (also sold under the brand name Tylenol) has a long history of safe use during pregnancy. Hope this guides you. Thank you.