Hi, I did a pregnancy test after three weeks of my last menstruation and confirmed pregnant. I have four kids already and not ready for now, so I took cytotec tablets. I only saw small cloth of blood and something whitish covered in blood and that's it It's been four days since I took the medicine and still nothing. Instead am down with flu and sneezing a lot. I went for for an ultrasound and nothing could be, so I was asked to repeat it in two weeks time. Can I take antibiotics for the flu?