Anyone else have this happen?

I was suppose to have my period on January 7th which it didn’t come. 3 weeks went by and so many negative pregnancy test I decided to make a call to the doctors. They wanted me to come in for a pregnancy test which I did and it was negative. They then went on to say come back in 2 weeks to retest. It’s now February and another period has been missed(mine comes every 28 days and last about 3 days). I’m wondering if anyone else has had this happen? What was the outcome? Did your period end up coming? And how long did it take for it to come? Btw sorry for the long post and lots of questions just need others stories or opinions. I should also add in that me and my boyfriend have been trying for a baby for 2 years and have had 2 miscarriage once in May of 2019 and the second in September of 2019.