IUI#2...soo NERVOUS

this is our 2nd IUI after I miscarried in October at 10 weeks. it felt like forever for my levels to drop all the way to Feb 1... my RE dropped the ball and I have to do a natural IUI hopefully with a trigger..the first cycle was clomid +femara+trigger and it worked. so now I'm super nervous that thus isn't going to work and it's pointless if it took all of that to get pregnant for the 3rd time in 10 years. I just want my baby now more than ever and it's killing me. Just trying to stay optimistic, Monday I go in for monitoring to see where I am in relation to ovulation. ..hopefully close. DH wants a baby so badly and I'm just scared it won't happen. I feel like I shouldn't be so worried bc our first cycle took on the first try so prayerfully we luck up again. sorry just had to vent.