I found out I was pregnant for the first time because out of the blue I started getting heartburn every night, where I had only had it maybe once or twice before in my life.  At the start of my pregnancy, the chewable calcium tabs were enough but by month 3 I was in PAIN every night.  My doctor suggested Zantac and I am so glad she did!  I took Zantac for the rest of my pregnancy and very rarely had problems that the little pill couldn't take care of.

 Now that I'm not pregnant anymore, I still occassionally get heartburn (pregnancy has forever changed me!) and always take my Zantac!