cd 40 af 9 days late should i give it more time

Hello every one I am 23 and my husband and I have been ttc for a little over a year. My cycle is normaly 30 days some times its a couple of days off but no more then four days. Af came when expected in aug. But in sept.it was a few days late and it wasnt heavy or cloty like it normaly is and it left early when it was over I started getting these faint head aches for almost the whole month I took a pregnancy test about the middle of sept.and I got a bfn. Wen it came time to ov my discharge did not change so im thinking I did not ov for sept. Now its oct. And I am on cd 40 af is 9 days late and I have no pms symptoms. I have been realy tiard and i went from not wanting to be to bd for the month of sept. to wanting it all the time this month my fingers keep swelling up and my friends keep telling me that I look pregers in my face but Idk I havent taken anoyher pregers test yet because I dont want to see a bfn. Should I give it a little more time befor I test?