Me yes but him no! How?!!!!

Ok help me out please cos I’m being made to feel like I’m going insane.

Been with partner for over 5yrs had a baby together last year. That year has been hard but we still together.

Anyway, I was at the doctors getting my smear test done and I randomly asked if she could give me a sexual health screening as well (seeing as she was down there). By the way I have only been with my partner and when we first got together all them years ago I was tested then and obviously during my pregnancy I was tested - always negative.

So my results came back and it says positive for gonerroea (soz can’t spell). I am disgusted and distraught.

A massive row break out when I demand my partner explain and tell me who he been cheating with etc. He denied deny deny!

He now tells me after I’ve threw him out that he had just been tested and he is negative!! I called him a liar. He now calling me names accusing me of cheating!!

I have never cheated in my life. What is happening here someone please explain or help because I’m so stressed by it all.

He had to of cheated right? How else would I have this? Why is he saying his test was negative?!