Ttc CD 35 no af and bfn

I am on CD 35. Usually I am so regular after getting off of birth control in March. Each cycle has been 28-29 days. I have taken a few pregnancy tests and all negative so far. I am experiencing some minor cramping, and slight discomfort during the deed with my so. He wants to get excited and think that we are pregnant, but I'm not so sure. I don't want to get excited and then nothing but the time waiting for a bfp or af is sooooo hard. Like I put I am getting cramps, fatigue, irritable, tired, and I had what I thought was implantation bleeding not too long before I was supposed to get af. Any advice? Anyone go through something similar and end up being pregnant???