Can I get some advice on what I should do

Elizabeth • name is Elizabeth my husband and i have a boy and 2 girls with the hopes that we can get a boy as our last baby.
So my period is now 2 weeks late but no positive test I got a positive ovulation test October 10&11 but no period what is going on!!! My periods are always on time maybe one or two days off that's it and I get a period every month. My husband and I are trying for baby #2 we had no problem getting pregnant with our first we were barly trying.