TTC new and need help

Hello me and my husband are newly married and trying to conceive. I’ve tracked my ovulation we hit it on the high. I have been feeling differently like a bloated belly, nauseated , frequently peeing and very tired. We took several test and they come back negative. I’m hoping someone could be like a buddy and help me out since it’s my first time ttc . How long should I wait past ovulation? And is also cramping normal my periods not due for 8 days yet.