Transferring 2 after transferring 1 first round?

I am still undecided about even bringing this up but am wondering if anyone had 2 embryos transferred after having a successful first FET? Not PGS tested. Now 32 yo. Did your Dr let you? My first FET was successful with one and I gave birth. For some reason my nerves are all over and I got super lucky my first round and now I’m worried that maybe I won’t get so lucky a second time. At the same time I know sometimes transferring 2 can do more harm than good and I certainly don’t want that. Anyone else feel this way going into a second round?