Socializing while puppy is in heat?

I have a puppy who hasn’t yet gone into heat, but I want to be prepared for when she does. I am still teaching her to be alone (don’t know if she has separation anxiety or if it’s my own anxiety about distressing her but it’s a thing we’re working on, she’s up to 20 mins but my therapist is trying to encourage me to leave her for an hour… but of course she’s not a dog trainer…), so she usually comes with me if I go out somewhere — to bars, dinners, friends houses — or stays with other friends who have dogs. I’ve read she can’t be around other dogs while in heat — that along with the pregnancy risk from unneutered male dogs there’s a risk of aggression or behavioral issues with female dogs or neutered male dogs. Is it also an issue to bring her to bars or dinners that tend to be human dominated if I plan to leave if another dog does come along? Do people just not socialize for the month their puppy is in heat? Or do you leave your puppy at home alone? I worry since she’s still learning increasing the amount of time she’s at home alone at a sensitive time might create extra stress for her.