I need help!!

Jessica
I have three kids but every pregnancy is different !!! I haven't gotten my period but I've been cramping for about 2days now in my lower abdomen me and my fiancé are trying to conceive and so far haven't had any luck but I also had a baby in May 2015 so it's been a year now all I know is that my last three pregnancies I got sick to my stomach but lately I've been very emotional and that's not normal please help me figure this out I'm stuck😕