Good Evening. It's been 4 years i got married. We are looking for a baby. I am taking treatment and also went for IUI. This is second cycle. Every month i used get lower back pain and nipple pain before getting periods. This ia time also i am getting pain one week prior to the periods. So, i want to know whether these are only symptoms of periods or foe pregnancy also will i experience the same symptoms. I'm worried about pregnancy. Kindly suggest me.