I had a miscarraige at 10 weeks after my second child. I, too, experienced what my ob said was a "blighted ovum". Apparently, I actually lost the pregnancy at 6 weeks...it took 4 weeks for the spotting to start. I was pretty freaked out because my previous two pregnancies were easy, get pregnant, no problem pregnancies or delievery.
My ob said because it was so early I could just let it go with the bleeding. So I did and about 5 weeks later (I am VERY regular) got my period. Well, on about day two or something, I started to bleed uncontrollably! I was working at the YMCA in a tumbling class for kids and I just started hemmoridging (sp?) - and my two little ones were upstairs in the child care - and husband over an hour away at work! So, I went upstairs, got a diaper, yes a diaper, my cell phone and made way to the bathroom. Two diapers later (no, i was not faint or lightheaded...I kind of go into super lady with the adrenaline) my friend came and got my kids, my in laws came to take me to the hospital and my husband was racing home up i-95.
So, I had the d&c then, it stopped the bleeding...my uterus was contracting like crazy until they got me in...it was weird, weird. It did not hurt, I was not totally out, my doctor was able to do it herself instead of some unknown resident.
Considering you are going away in a month, I just would have it done if your doctor will perform the surgery. I was home that evening (it was still light outside). Felt fine. YOu don't want to have anything happen to you on vacation and you never know how your body will react once you have your cycle again.
Oh, and we started trying 2 months later and was pregnant with baby #3 by the 4th month after the d&C. Please think about it for your own sanity!