Everything I've read says watch for LO's cues for starting on solid foods. "Every baby is different, you don't have to introduce solids just because baby has reached a certain age."
So what cues did you get from your LO? DD is just now 6 months and we held off b/s we were getting control of her GERD and milk allergy. We've also had difficulties getting her to gain weight b/s of those issues. I have an appointment for 6 month shots and pedi said we'd talk about it then (I originally asked at her 4 month shots), but I'd like to get your input.
Re: FTM - Solid foods
Well, you should start solids when LO is ready for them. So, follow baby's cues of readiness for solids, and if baby is ready I guess 5 months is a good compromise. Though we started at 6 months but my LO wasn't really interested in solids. Now I use this website https://goodmomming.com to get inspired with foods for my precious.
We started at about 4 months. LO would stare at us and open his mouth and actually make a chewing motion when we would pick up our utensils. He would follow your every move. He began reaching for our food. By that time he could hold his head up and sit supported. We started with 1 tbs oatmeal each morning and he took to it like a fish to water. There aren't many foods he doesn't like.