Sex with a man for a change. Leaked thick stuff. So was this a vaginal yeast infection or something else?

Leaked what when? It could just be semen if it happen immediately after intercourse. It could also be a yeast infection, or one of several other things. If it keeps up, go see a doctor and get checked for stds.

Related Questions

I have a bad vaginal yeast infection for like 3 wks now, I've never had sex so it's not an std., I'm wondering if yogurt or something may help rid it?

Yeast infection. Yogurt will not treat this. There are OTC products available in the pharmacy, and eating yogurt regularly may help to prevent recurrence, and in addition is very healthy for you. Hope this clears up soon. Read more...
OTC creams. If it is a yeast infection, there are over the counter medications like Mono-stat. Yogurt will help as well. If the diagnosis is in question or the OTC meds don't work, you should see your physician. Read more...