Amazing-Pregnant Recurrent Miscarriage

Sooooo we were told I had probably developed an allergy to my husband semen after our post coital test.  We decided to take a few months off before we did the IUI's because I wanted to try to lose a few pounds.  Low and behold...without medications, without ovulation strips WE ARE PREGNANT.  I'm 5 weeks today.  I had my hcg drawn at around 13 dpo at it was 170 with a progesterone of 21 (without supplements) and then again at 17dpo and hcg was 694 and progesterone 26.  We have everything crossed that we will keep this one.  But we won't know for sure until the baby is in our arms.  I have a progesterone draw today and a ultrasound a week from today.  We shall see.