AITAH if I’m upset that my husband mentioned getting a paternity test?

My (31F) husband (32M) just mentioned that he’s keen on getting a paternity test for our 3 week old baby girl.

His reasoning is that our daughter has darker hair than him (he has brown hair, I’m white blonde). I’m a little confused as she hardly has any bloody hair and this just feels like he’s accusing me of infidelity!!!

I actually thought he was joking initially. The conversation went as follows:

He said, “her hair is really dark”. So I said, “yeah, it is” even though it isn’t darker than his. He then mentioned getting the test…it was completely out of the blue. I initially said that he should go for it as I wasn’t thinking. But, now I’ve had some time to reflect, I’m really not happy about it. If he wants to get the test, fine by me BUT, it just feels like he doesn’t trust me? Am I overthinking this?! He has no reason to think like this.

He even went as far as to say, “if she wasn’t mine biologically, she’d still be my girl”… That statement just pissed me off and I’ve said nothing to him since.

So, AITAH?

Update 1: Thanks for all the comments and advice. There seems to be some common responses, so I thought I’d just reply to them here… I’m more than happy for him to get the test but, as most have mentioned, that would confirm his lack of trust in me, his wife, and I don’t think I could overlook that. I think I’ll seek some counselling to discuss this issue further (I’ll be inviting him to join me!!).

Some mentioned that our daughter might have been swapped at birth and the test would benefit us both. I can assure all of these commentators that she didn’t leave my side once throughout our hospital stay (from her entrance to the world, to her leaving the hospital with us). I’m very happy that she’s our little one.

Most people mentioned projection on his part. I must admit I hadn’t thought about this! I’m almost certain that this isn’t the case but, I will discuss my fears/concerns with him as this is now at the forefront of my mind!

I will update accordingly.

Thank you all!