Does temp matter

Ak
I've been tracking My temperature and it's been all over the place 
It's my fertile week my cervix has been open and high ready to go lately
Well my temperature spike one day to 98.6 when its been 97.8 and then it went down to 98.1 and was thinking it stay that way cuz this is fertile week but instead this morning it when to 97.5
Does temp really matter on the sense of ovulation ? My cervix remains open and high and discharge is egg white and wateryish