TTC (When to take a pregnancy test?)

My husband and I have been trying to have a baby for about a month now and for the the past we i've been feeling kinda sick like with smells and stuff and been feeling very tired and i've been having really crazy moods swigs like one nommet ill be happy than the next really mad but than im over it in a second. So i thought i was pregnant and I toook two pregnancy test and they came out negative.

So I was wounding if do I jave to wiat until i miss my period to take a test?

Much help needed please!!! Im new at this and sometimes I dont know what im doning some times.