Planning on starting Plexus Slim..

I'm 22yrs old and have had irregular periods for the last 2 years. My husband and I have had unprotected sex for about 2 1/2yrs now and still have not gotten pregnant. Last year I had a period in February (the month my husband proposed) and didn't have another until that October (when we got married) I assumed it was normal because I was so overly stressed with wedding planning. I didn't get another period until I want to say January, surprisingly the last few months I've been regular every month. I went to the OBGYN a couple Fridays ago and she not only did a Pap Smear on me but she also took blood for blood testing as well as thyroid testing and all three came back completely normal. I take Womens Gummy Vitamins as well as Prenatal Gummies daily. I plan on starting the Plexus Slim diet and am curious if any of y'all have heard of it helping with fertility? We are wanting to get pregnant so I'll take any advice I can get. Thank y'all in advance!