HELP!!! TTC after Contraception

Kait
Hey, all! My husband and I are hoping to TTC starting May. I am completing my last round of contraception (levonorgestrel & ethinyl estradiol) this month, and then my husband and I will transition to condom use so that my body can regulate itself before we TTC. I never had a regular period before I started birth control (November 2013), and I'm nervous about my body being able to have regular periods. Luckily, I have four-ish months to get everything under control. 
Does anyone have any tips or ideas of products or something that can regulate my period and increase my chances of conception come May?