I am a SAHM to two dd's age 3.5 and 17 mths. I thought that getting Child Benefit in my name meant that my state pension was protected as it meant I was registered for HRP. I have had a letter from HM Revenue and Customs stating that despite HRP I have not been credited with enough NI contributions to make 2004-2005 count towards my state pension. This will mean the same for 2005-2006 too as I am still not working so what does the HRP count for. I am not panicking as they want ?371.80 but I have till 2011 to pay this, but on the other hand I will owe for more years as I hope not to go back to work until my dd's are both at school. Does anyone understand this or can you offer me some advice?? TIA.