My period varies monthly its been 36, 28, 35, 27 and 37 so I expected mine around the 28th day mark this month...

I have been having sex everyday day or every 2 days this month and unsure when I really ovulated. I tested on the 27th day with hope buy got a negative result. I was upset but thought maybe wasn't my month then from day 29 I got really bad cramps I would normally get the morning of af coming... However its now day 31 and still no af... I was a little sick last week but didn't really take notice becos I know you don't normally get morning sickness until around week 6...

At this point I really don't know what to do... Test again to see or wait to see if it comes...