Reoccurring nightmare

We lost our first pregnancy in December it was the worse day of my life. Then we found out we were pregnant again and I was so worried. When I saw this second babies strong little heartbeat i was so happy and believed that we were going to have another chance....but no we once again lost this pregnancy too. I don’t know what to do my husband and I were the only ones that knew about this pregnancy. But I get to watch my sister in law get to be pregnant and have her baby around the same time we were suppose to have our second chance. I just so lost and I hate everything.