Positive test.

so in February we had a VERY faint line that disappeared after two days and I started miscarrying a week late. Last month I bought a bunch of opk and hpt in a package on Amazon so I figured I may as well use one in advance and pretty sure I got a positive this morning... and I feel different this time then the chemical or whatever it was in Feb. for those who have had that excitement and then loss how did you deal with a positive later. did you just wait a few days or test many consecutive days...? thanks for the help! we have been TTC baby #2 for 13 cycles now so trying not to get my hopes up JUST yet...