21 days late!!

Hannah

I took a test this morning... It was negative. Actually took 2 with same FMU and both negative. Im 21 days late and no sign of AF. I have been regular for the most part and just now starting to become irregular. I have an appointment on july 8th with obgyn. I am about to start some pills called concieve easy that is supposdely natural fertility pills to help with pregnancy. Anybody else been regular and then went irregular ? And have negative tests ? I need advice y'all!