Is this IC?

Could I have Intersistial cystitis if the only time I have a flare is after sex? I didn’t have the issue ever before my husband although I hadn’t had sex for about 2 years prior. My husband and I started having sex when we got married about a year ago and I have uti symptoms every single time after having sex.. But it never shows up on a uti test or culture. But I can FEEL it. It starts at my groin for a week or 2 and then eventually it hurts everywhere in my stomach up to my ribs like painful stabbing pains.. Does this sound like IC? Sometimes it goes away after antibiotics but sometimes it continues even after and eventually the pain goes away… until the next time we have sex. I have a referral to a urologist but they can’t see me until august..

Things I already do:

-cleanse before and after intercourse

-urinate before and after

-always take an antibiotic prescribed for after intercourse

-take probiotics

-d mannose regularly

-marshmallow root

-drink water

Nothing works to prevent it 😣