I thought we were pregnant

Title says it all. My husband and I just started trying last month, and my period is very regular. So when I was 1 and a half day late, I started to get excited. My husband kept asking me if my period showed up and he would get happy when I said no...

Well my period finally showed up. Guess I’m not “never late” like I say I am.

Honestly, I didn’t know that we were exactly trying to get pregnant. I thought it was more of fun sex for once, him finishing off inside of me with a “if it happens, it happens” vibe... well, my husband really is ready now! He was visibly upset when my period showed up today.

So. I know we’ve only been trying for a month. And we did not even have sex a few days before I ovulated, but I think it was 4 days before ovulating.

Can anyone give any tips on how to get pregnant?

I have Hashimotos/Hypothyroidism so I hope that I am able to even get pregnant 🙏🏻