Hey guys sooo my AF has been delayed by 20 days and I took a HPT last night which came out to be negative. I have a 30 days cycle so I waited for three weeks before I took the HPT. Are there any chances of me being pregnant. I have been having severe nausea and puked for the first time today. Am a little stressed because the periods are delayed. When should I go to the doc and get a blood test? Or should I wait it out for another month and see?

Please advice!!