Ay, sound like flu or common cold yan, lalo na ngayon pagsisimula ng tag-ulan, a lot of my pregnant friends have been going through the same thing lately. Pero honestly, better to check with your OB agad, especially na 6 months na kayo, para ma-confirm kung ano talaga at ma-ensure na baby is okay din. Lagnat with chills, headache, at ubo can be managed pero kailangan talagang makita ng doctor para sa tamang advice at safe na gamot for pregnancy, hindi lang parang mainit-lamig lang yan basta.