Initially the experience if rough on you.
You do not know how to teach your pertner what feels good, and what hurts. because you have not explored your sexuality.
Only by getting sexually educated, and some trial and error do you become comfortable with your sexuality. The problem usually is by the time you begin to understand your body you may have totally alienated your hubby sexually. That is usually how marrital afrairs start.
First you need to learn what the hyman is. That is the membrane you keep hitting that ruptured the first time you had intercourse. As you become more sexually active this membrane will be torn. to open the vagin" for sexual intercourse. While this may not be the most accurate discreption please bear with me.
What I would suggest if you and your husband learn how to stimulate you a bit more. you can do this with his hands, your hands or even orally. ( most women come to enjoy this method a great deal) and I have to admit I enjoy arousing my wife this way primarily for her satisfaction.
You can also Condition your vagin* by learning to use Dild*'s Vibrators, and other "TOYS"
I would suggest you learn this privately the first few times so you can overcome the akwardness on your part.
Once you have experienced your new found sexu*l awakening please share the information with your husband, by communicating your "NEED" you will inpower him with knowledge on how to maintain a healthy sexual relationship with his wife, and he will not need to visit the girl at work in the form of an Affair.
The information I listed below should help. You can find further Sexual information on the web if your interested enough to go looking for it.
God Bless