I have very bad teeth & no dental insurance when I was pregnant with my youngest son they really fell apart & I had many toothaches. If the tooth is broken off or has a hole in it what is hurting so bad is the exposed nerve or root. This may sound crazy but if you can seal it off and keep the air when you breath or cold drink from getting to it it will ease the pain or make it stop. Here is the crazy part I have used bread or sugarless gum, pack it in the hole as good as you can it may take several times before you can get it to stay but it works. Also some pharmacy's carry a temporary filling which is like the filling a dentist puts in but not permanent again it may take several times to get it to stay. I also used the prefilled orajel swabs when i was pregnant. Also try elevating your head when you lay down because it seems that when laying it hurts worse this will help a little. These are just a few of things I done and believe me I have had many many toothaches and still do. They only work for a temp. fix though.

Hey hun i would try swilling your mouth with salt and water.....Even though it is not nice .......I was going to suggest clove oil as it is very good but you cannot take it while pregnant sorry Jenny