Has anyone ever tried this?

My dr today told me that if my husband and i dont get pregnant by next month (since weve been trying for almost a year) then she was going to put me on birth control for a few mo ths. Saying when she takes me off of it it should jumpstart my system and get pregnant right away. Ive never heard of it. Ive also never been on birth control. TMI- but my husband is only the second man ive ever had sex with.