Losing weight and TTC

Hi ladies! I weight 256 pounds and I would like to get down to at least 200 pounds. My hubby and I are ttc but i also what to lose weight so we have a better chance! I found these great protein meal replacement shakes I can drink if I miss a meal. I am a CNA working on getting my nursing degree so missing meals happens often. Any suggestions or thoughts on the protein meal replacement shakes??