TTC at 27 previous early miscarriage

Je
Hiiii everyone so looking for words of wisdom and some hope. I have been TTC for about 6 months now. Not technically doing "everything" we can, like we have sex every other day or every 2-3 days, so I know that we could only try during my ovulation. BUT. 
In January/February I had an early miscarriage, so a chemical, after 2 weeks from 3 positive tests, I got my period. Prior to then my period was ALWAYS regular, consistent 30-31 day schedule had my period for 4 days then it went away, again, consistently every month since I was 14 years old. On and off birth control nothing ever changed. 
Since then, my period has been consistently 2-3 weeks late every month. I have been frustrated with trying to track my cycle and TTC again. I am so nervous that it is never going to happen again. Once again I'm 2 weeks late and my boobs are killing me, I'm bloated, I'm tired, I want to be pregnant but I'm pretty sure I'm just PMSing. I haven't taken a test because I don't want to get myself upset. 
Again, would love some words of wisdom or hope or any kind of advice or anything!