pap smear visit turned to bfp

little bit of my history me and my husband have had infertility issues for 5 years now we decided to go with

IVF

, well these last 3 to 4 week I hadn't been feeling myself everything was off I felt fatigue, mood swings,and spotting started for 3 days also cramping for about 2to 3 weeks everything was just off I took a hpt it came out bfn that was about 2 weeks ago, so I started prevera about 3 days ago so I can start a period and start my

IVF

process. at this time I'm still getting the craps so I decided to go get a pap to make sure everything ok to start my

IVF

. at the Dr office I never got told to change to a gownd infact the Dr came in had me lay down and used the sano machine on me. the whole time I was thinking something bad had been found. He finished and told well I have some news for u your urine test came out positive and we tested it twice. I was I'm complete shock but mostly scared if I hurt the baby with the prevera he told me the prevera won't hurt the baby but to come right back tomorrow they drew blood he said fingers crossed everything is ok should I be worried