Hi there, thanks for the honest question there. Wasn't quite sure whether it was clitoral or g-spot orgasms you had struggled to acheive with your husband? If it is clitoral orgasms you would like to achieve with the help of your husband, then it would be great if you guys worked on his oral stimualtion on you. Evidence suggests that oral sex is the most likely way that a woman can achieve clitoral orgasm from a partner. If it's g-spot satisfaction you are struggling with then rest assured - you're not the only one! Only about 30% of woman have ever experienced this during intercourse. Positions that help your antaomy to be best angled for g-spot orgasm are doggy style, and missionary, with him on top and a pillow underneath your lower back. If you would like some assistance, I would suggest you use a specifically designed toy.
http://sexgear.co.nz/vibrators/g-spot-stimulator/1/ G-Spot Toys are hooked to reach into the g-spot (insert with hook facing towards stomach). Or you could try our ever popular couples instructional
http://sexgear.co.nz/books-dvds/couples-dvds/expert-guide-to-the-g-spot/ DVD which unlocks the secrets of G-Spot orgasm and Female Ejaculation.