Well now idk what to do.

Heather • I am a full time mommy! Im a FULL TIME caregiver, part time student. I`m 23 years old and I`m TTC my 2nd
I'm just here to vent a little. 
Last month I was late on my AF and I thought it was because I was sick but it turned out I was pregnant, I miscarried and it was a very emotional week for my boyfriend and I. We were depressed all week long. AF came and went and I hit my fertle window and didn't realize it until after we had sex 2 days in a row.. I'm afraid to be pregnant again because I'm afraid to miscarry AGAIN. 
I wonder if my Obvulation window is off considering I miscarried or could I seriously be pregnant again. I guess I won't find out until the 24th. I want to be pregnant because I have baby fever but I'm scared that I'll lose the baby. :( 
Advice, help, I need a mommy friend.