Misscarriage and possibly pregnant again? Help

Kristen • 24,married and trying for my first,after a chemical pregnancy July 2015.
Hello evwryone.....about 5 weeks ago I had found out I was pregnant,I was 5 weeks but shortly after I misscarried. It's been very hard for me,I also was put on antibiotics for uti,well few days ago I've started getting what I think is a yeast infection but not sure as I e never had one before. But I also had some very very tiny spots of blood off and on for two days and then nothing one day and today I had just one tiny spot. I'm suppose to start tomorrow. I don't know if i plus be prego again or not,but me and hubby did the deed on the 1st which was my ovulation day,we also did it one day out of my fertile days. But could I really be pregnant again this soon? I can't help but worry if i am,I'm afraid I'll lose the baby again.......