BBT 97.53

Michelle
Okay well it's been 4 days since my period ended and my BBT Is 97.53 and yesterday it was 97.29, is that a big jump? When can I expect to be ovulating? What temp should I look for ? Also let's say it reads that I'm ovulating... And my husband is at work... How long do I have to have sex? I test at 930, he doesn't get home until 530! CONFUSED!