Talked to my gynecologist yesterday about ttc

I’m really lost on all this ttc stuff, I’ve been trying for 4 months and I’ve never wanted it more than I do now.. I had a drs apt yesterday and I consulted to her about getting pregnant, she dropped my hopes to the floor🥺 I am over weight, but have no health issues. She suggested loosing weight and getting the nexplanon for at least a year. But she also told me to start taking prenatal pills? What do you ladies think? Should I keep trying?😢 will those pills help at all?