No periods. To test it. please advice.

I hav irregular cycle. Went to doc in jan and gave regestrone as I don't get periods for 2 months. In feb got periods on 11th and as we were trying to be preg, she advised to take folrite, metpcocarre and seacure, got periods on mar11th. And in tht cycle she advised to continue same with duphaston instead of seacure. I have not got my periods still and did a hcg test on 5th april which was negative. On 10th and 11th I could see changes in mucus, it was like egg white. Confused of my cycle day length. When was my ovulation exactly as we tried from CD 12 to CD 20 and was able to feel ovulation on CD 31 & 32. Logging my dates in a app  from the begining and it showed the ovulation date same as I could see the change in mucus as well. As per app, my periods date will be 28th Apr, should I wait till then or need to test for preg. Am afraid tht if negative, I will be more depressed. Is it too early for me to test it. Please advice.