I am pregnant again

I am pregnant again. Getting pregnant is not really the issue. Staying pregnant is. My last 3 pregs miscarried; 5 weeks, 8 weeks, 10 weeks. Dr's can't find anything wrong. I am 32 years old and have 2 daughter's ages 11 and 13 (in August). So you can imagine my lack of excitement this 4th time. What is meant to be will be. I just have to wait and see. Pretty much just keeping to myself.