Possible TMI about my lady bits 🙊

I am 14 weeks pregnant with baby number two. I’m having a lot of odorless discharge which I remember being normal with my first pregnancy. When my boyfriend and I have sex it feels great! Until we are done. When we are done if he finishes in me I’m usually left burning and itching. If he doesn’t finish in me, it’s not so bad. When we apply the lubrication we use it sometimes burns a little bit too. I remember having discomfort during sex with pregnancy number one but that was mostly due to dryness. He’s faithful. I know this for sure. So that’s not an issue. I guess I just want to know if anyone else has experienced this? Does anyone know what it could be?

Thanks in advance!