Needing help with the OPK's

Me & my Husband are trying to get pregnant and we dont know anyhting about trying! We have a 2 year old but she was not planned and I got pregnant at 16 with her. I am having trouble tracking my days and I have been doing this for 4 mos. now. I have bought many OPK's and sometimes I get a positive, then I take another the next day and its gone. We just started trying this month and I am not able to take a pregnancy test yet but I have not been able to track my LH surge! I took all seven of the test on what was supposed to be my ovulation days and I got a positive but I took another the next morning and it was gone. Please help if you have any insight on what I should do now! Thanks

[tarajanes]

When you use ovulation tests,you can be one of the lucky ones or not,for me when i used them i would have 2-3 days of positves tests.I always say use them in the afternoon.after no pee pee for at least 3 hours.even with 1 positve that is fine,it means ovulation will happen within the next 72 hours.so get busy.if you know roughly when you normaly get a positive,then start bedding just before.is your cycle regular.I would advise charting you bbt also as this will confirm ovulation,where's the tests only tell you that ovulation is about to occur.just because its negative next day no matter you wont nessasarily get positive every day,depends when your surge is.if your cycle is regular same amount of days each month subtract 16 days from the total amount of days then start bedding.check out sites like fertilty friend or ovusoft,both offer very good charts,and tons of info.