Is this what I think it is???

So I think I’m miscarrying. I can’t believe it. I saw a heartbeat last week and everything was fine. You know the really shitty part of all this? I am on a cruise right now with my family for a surprise cruise for my mom. I just told them on Sunday that I was pregnant. The next day I started bleeding. And yesterday night I was bleeding more and not cramping and then when I wiped this came out. Slept like crap and now the cramping is super painful. Worse them my period and I’m bleeding really bad. Went to the on board doctor yesterday and confirmed my cervix was closed. I still have all my pregnancy symptoms, nausea, super tender breasts, fatigue. I’m so restricted right now because I’m on a cruise and I feel like I’m ruining this trip for everyone. My husband yesterday just left for a selection in the military and I have no contact with him for 45 days. On Friday I would have been 8 weeks. This is terrible.