Scared of sex?

Is it normal to not want to have intercorse after taking plan b and experiencing the side effects? My sex drive is back to normal (it's been a month) but the thought of having him inside me makes me anxious and tense. We use a condom but what if something happens and I have to take plan b again? It's probably just my anxiety talking but my side effects were really bad and I don't want to go through that again. I don't want him to think I never want to have sex again but at the same time, I don't know when I'll be ready. I know I don't "owe" him anything but I want to give him that pleasure. I told him I needed a month to just know I wasn't pregnant just in case my period was late and it's been a month. We always have super open communication but I don't feel like I can communicate my needs clearly when I don't understand them myself. I want to want it but I'm honestly scared. How do I get back on the horse? (If you know what I mean ;)) How can I communicate what I need? How do I figure out what I need?