HELP!! Tips on how to get my body to regulate...

Just had my IUD removed on March 31st, and want to get pregnant in June/July, any tips to regulate my body to be ready in June? Last time I get pregnant I got pregnant the first month using this app! So I’m really hoping to get my cycle back in rhythm before them!! PLEASE HELP ANY ADVICE HELPS. I already take prenatals! Also i wasn’t getting a period with my IUS (mirrena)