Need advice please!!

My husband and I have been together for almost 7 years and married for a year and a half. After going through a lot this past year I realized I was not at all ready for marriage; although I did say "I do" the process was rushed because of my monster in law. We got pregnant a month after we met in person; we were long distance for 2 years. Anyways, idk if it's because I never got the opportunity to explore sexually or not but I have been having some really crazy sexual fantasies lately and when I talk to my husband about it he doesn't even consider it. I'm not even comfortable giving him head...idk what to do our sex life is terrible and he's not open to anything new... Idk what to do. :/ Help!