HELP!!!

i’m posting anonymously just bc i’m embarrassed & i don’t take rude comments very well. anywho, i’ve been with my fiancé for the past 6 years, and we’ve both been 100% faithful to each other. we have 1 daughter, and have been trying to conceive our second with no luck. the past 2 weeks or so, i’ve been having some weird things going on with my lady parts. i usually shower at night time, and usually by late the next evening or late afternoon i’ve been realizing a fishy odor. (embarrassing & gross, i know) i’ve had BV a few times when i was pregnant with my daughter but i didn’t have symptoms. i’ve been googling things bc i’m a hypochondriac and i’ve read about something called trich??? i was obviously tested while i was pregnant and after & i’ve never had it .. i have very light itching sometimes, the smell is usually the worst a few hours after intercourse & at the end of the day. i’m freaking out. i will be making a gynecologist appt but i’d like some thoughts or advice in the mean time.

edit : earliest my gyno can get me in is the 29th