POSSIBLE TO PUSH BACK OVULATION DATE?

Hello. So me and my husband are trying for a baby. He’s coming to town on the 19th and the way I calculated it with my cycle that was perfect time for ovulation but I started my . A couple days earlier than normal normally my cycle is every 34 days but this time I started on March 31, 2019 so I am scared in my ovulation might come before he shows up to town is there anyway I can use the nuva ring to try and manipulate my ovulation or push it back a couple days later. ( I am not on birth control but I have a prescription for nuva ring) this is our only chance for awhile and normally I’m very fertile but.. I’m scared I will miss our chance and ovulate before he comes! Thankyou! Any tips of pushing back ovulation a couple days???