hi, might be a bit late if you've already got over it, but i had a horrible cough during winter, it got to the point i couldnt sleep and i was scared it would send me into early labour. i did some research on natural therapies and came up with this, luckily i had some already in the house, i tried it that night and it soothed my cough enough for me to be able to sleep and the next day my cough was much much better, 2 more nights of taking it and my cough was completely gone! i have to warn you, it tastes gross, but it truly truly worked for me and if i get a cough again (even when not pregnant) i will def be using this!

apple cider vinegar (you need the good one, you can get it from supermarkets) 1-2 teaspoons
hot water
honey to sweeten (wont take the taste of the vingear away totally but makes it bearable)

if your cough is still bothering you, give it a try! hope you feel better!