so at my last appointment they said I was measuring on the smaller side not to be alarmed but…

so at my last appointment they said I was measuring on the smaller side not to be alarmed but they're monitoring it so if it becomes an issue they'll let me know and we'll take it from there. but I've been sick a whole lot so far and I'm having trouble gaining weight, like I feel like I need to gain a few pounds and I know it wouldn't hurt. Does anyone have any tips or advice for doing so?! Please let me know✅💭