from time to time I don't see my baby

o.z
I'm 15weeks and 5 days almost 16 last time I had an ultrasound!! I wonder with all my heart what's is going on inside my baby's belly 😢😢  I always go back in the beginning went I was drinking pills to lose weight without knowing I was pregnant and I just feel bad again!! I just ask my self and pray to God to protect my baby every day..