I had unprotected sex 4 days after starting my birthcontrol for the very first time. I am taking Lo Loestrin Fe, and I know you are supposed to use back up birthcontrol until about the first 7 days or a month. And now it s a week later and I am experiencing headaches and hot flashes. Is there any possible chance that I could be pregnant?
Hallow Dear, Holstein Fe are birth control pills which contains north Chat Doctor.  These are known to cause nausea and vomiting and increase acidity with hot flushes. Increased acidity does cause headache. Please use some antacid like pantoprazole to control the acidity and all your symptoms will go away. The first cardinal symptom of early pregnancy is missing a period; all other symptoms appear about a week after the missed period. Hence, these symptoms cannot be attributed to pregnancy. I hope this resolves your problem.