Question: Please Help!!! Desperately trying to conceive

We are on TTC. I had my last periods on 5 jun to 6 jun. We were sexually active from 10 june - 25 June. This month my expected period was on 5 July but it didn't show up, now It delayed by 5 day. I took firstresponse test yesterday on 8 July came negative. Even i am feeling all symptoms (pms) like cramps,mood swings,anger. Can anyone please help?