Anyone who doesn't let you be who you need to be isn't the right one for you. And who is his family to be that up in your business anyway? Does he rat on you? Does HE disagree and give you a hard time?
If so I think your relationship needs a serious rethink.

Good Luck.

Based on this post alone, I can't tell whether your husband is putting any pressure on you or it's just his family. If it's just the family, I can't tell whether your husband supports you, supports them, or doesn't even know that there is a problem that's affecting you so strongly. Have you tried communicating with him and/or them about what you believe? Or did you stop your practices just because it was something you felt you needed to do before consulting with anyone else?

There's just not enough information here to give you good advice. Sorry.

I'm with Liante on this one- is your husband supportive of your religion or even aware of the problem? Because unless he is trying to stop you practising Wicca or being a dick about it, I don't see why his stupid family should be an issue. Ignore them and do what the hell you want. You clearly want to continue your studies and I don't see what their opinions have to do with it- it's not like they can burn you at the stake for it anymore. Point is, you married him, and not his family, so I'd discuss the problem with him and ask him to stick up for you if they're asshats to you.

The most important thing here is your happiness. It's good to make sacrifices for people and things that you love, but never ever ever sacrifice your overal happiness or sense of well-being. If Wicca is something that really brings you happiness, than the people who truly love you will get used to it, even if they don't agree with it. And if they can't get used to it then they need to be out of your life. Don't ever let yourself get so wrapped up in other people's needs and desires that you lose yourself.