Missed period???

Destiny

I was supposed to get my period the 5th of March and still have not received it. But not feeling any symptoms yet, me and my fiancé are trying to conceive for the past 5-6 months and still nothing. I just don’t know because I also have lupus and raynaurds syndrome and now I might have kidneys problems. I just need add ice on what I should do and when I should take a test??? Please help!?!?!!?