Wondering if there are other ladies who don't normally have a period trying to get pregnant. Also…

Wondering if there are other ladies who don't normally have a period trying to get pregnant. Also wondering how soon y'all started to feel different and have symptoms or if anyone just knew? I think I am but it's still to early to test. I feel different. Nauseous and also craving a little. But I'm not sure if it's all in my head.