Miscarriage

On November 3rd I found out that my husband and I were expecting our 4th child. It wasn't planned and I was a wreck. We are currently living with my MIL while we build our house (next year) and I'm in cosmetology school finishing in October 2017. I went to the dr and they confirmed through ultrasound that I was indeed about 5 weeks pregnant, all you could see is the sac. We planned to wait to tell our family on Christmas, I had finally calmed down and began to be excited about having another baby, our youngest would have been around 5 when this one arrived. 5 days after that ultrasound I started bleeding. I'm completely heartbroken and I feel guilty because I wasn't excited at first. I'm trying to understand how I could have 3 amazingly healthy pregnancies l, but couldn't carry this one past 6 weeks. My last baby was a preemie born at 32 weeks so of course I'm wondering if maybe my body is wore out. We didn't tell anyone so I feel like I'm going through this alone. I just don't know what to think.