I had a lot of stress with my sons dad when I was pregnant, and was worried about that (we broke up when I was 8 weeks because he got violent), but he is a healthy 2 1/2 yr old now. I had no complications because of that. I did have dull cramping and get bloated and stuff wuite a bit. There are some good websites out there that walk you through every week of your pregnancy and tell you what to expect and what parts of the baby are developing, even the size of the baby. I loved reading that stuff, since you really don't know what is going on in there! Babyzone.com and babycenter.com are both great. If you sign up on them, they can tell you your due date and date of conception based on the first day of your last period. They also tell you when muscles are stretching and stuff, which may cause cramping that is normal as long as it is not bad. Every week they email you and tell you what is going on with the baby that week, and then you also can get lists of articles you can read based on your situation and what might be going on. I am sure you are fine, but noone can really tell you other than your Dr! If you have any concerns, I would say get in right away and get the answers you need to reduce your stress... even worrying about the baby can stress you out and be harmful to it! Try not to worry, and just let things go that you are stressed about now, things will work out somehow and you will be fine. I had a LOT going on when I was pregnant, I just decided I can't let my self have that much stress so I just let things go, that I usually wouldn't have. I dealt with only what I absolutely had to. I had some complications at the end... but that wasn't related to stress. Good luck with your baby!
J.