On march 21st I had a positive urine test at the doctor's office which was unexpected because I had the test because I was going to get my wisdom teeth out, not because I missed my period. I usually have a period every month , however they are not regular. On april 5th I started to pass blood clots for about a few days and stopped bleeding for two weeks.I still have all pregnancy symptoms and now I am spotting again. So I had an ultrasound and blood work done yesterday. My Hcg level's are 1600 I am guessing I should be around ten weeks but I don't know the exact date I've had my period and my OB didnt tell me how far along I was because the ultrasound shows an empty irregular shaped gestional sac. They said they didnt hear a heartbeat. They didn't show me the ultrasound while they did it. I am wondering if I could have gotten pregnant again after I thought I had a complete miscarriage, or if I was off on the dates and it is to early to hear a heartbeat because I have a tipped uterus maybe the baby was hiding. Or possibly I had miscarryed one twin because the father is a twin himself and twins are common in both of our families..They want me to get a d&c, but I would like to wait a few weeks to see if it happens naturally or if this pregnancy is viable. I also believe I have a possible chlamydia infection would that do anything to the ultrasound or baby?