lack of urge to have sex

I am a 23 year old female who just had a little girl 6 months ago and I have noticed the lack of interest in sex completely but I had this since before i had my daughter. past 6 months I've had sex 3 times. I could go months really without any sexual interaction and I just do not believe that's right and it is causing problems in my relationship with my husband and I which I do not like I was wondering if any of you ladies had any information on what the cop could be how I could improve it what changes I can make. feel free to throw in a comment any ideas I really appreciate it.