fertility help!

Megan • Mommy to a little boy 💙 Aug. 2017
hi ladies, so I was on depo for two years and have been off of it for about a year and a half. from September-April I had regular periods. i had a oops and missed my period in May. but I ended up not being pregnant. but I now missed my period for June as well. (no possibility this time) I don't want to get back on bc because my boyfriend and I want to start trying to hopefully become pregnant by December. is there anything otc that I can start taking to increase my fertility or do I have to wait until I have a regular period again? also any tips on planning a pregnancy ? 💕