Anal sex

So I'm on this new birth control called the implanon. It's pretty good so far, no complaints. I love it! Its a small flexible rod that releases hormones regularly to stop my ovaries from releasing eggs. The rod is effective for 3 years and then I have to have it removed and or replaced for another 3 years. I can have sex with my boyfriend without a condom and no worries. One thing that sucks is that my period is unpredictable. Unfortunately I got my period and my boyfriend has been driving me crazy. I dont know if it's the hormones or what but anything he does turns me on. I've been jumping on him every chance I get, we're always feeling up on each other but now that I've got my period we've been kind of limited. He's been dying to touch me and I just won't let him. He keeps bringing up anal and I don't know anything about how to go about it or what to do to prepare for it. I'm not even sure it will be pleasing. Giving him blow jobs have been fun but he wants more and I want to let loose a little too. Anybody have any personal tips or experiences they'd like to share about first time anal..?