No period in April...lots of sex

So my last period was March 31st. I began taking home ovulation test every morning (1st pee of the day) from 4/10 on throughout the month. Not only did I not ever come on my period, but I did not ovulation at all for the remainder of April. My husband and I continued to have sex every other day in the random case something happens. At this point I don't know what my body is doing or if I'm missing something I should be doing to get pregnant. We have been trying for a year now and I'm soon to see a fertility specialist. I've exhausted too much energy here and I'm starting to get discouraged. Should? When should a preg test be taken? Any advice/encouragement would be helpful.