Missed M. C. single time. Start period?

Since last 2-3 months it was starting 4-5 days late or accurately on 26-27day. But was normal in flow, or days wise no other issues.  it should have started on 22 nd or 27th Dec. till now have not started. Did home pregnancy which came "- ve ". In the week of 19 Dec.  was feeling all common symptoms for me  tiredness, feeling more sleepy, gases, few acne. Still feeling tired ness,gases reduced now  with some food, now some time feel little chakkar  bt not fainting so such.  Just small one round. Having  nausea  once in a day or so. Since last 2-3 nights not got good sleep also.  Coz of which digestion is not proper  in last 2 days. This is common for me.  Main issue is MC.  Do I need to do blood pregnancy test? Or any thing else. Should I go for any tablet which will start period? In 2020 July had  similar issue missed  MC high prolactin  that time  done all test for thyroid,other MC related issue n were norml.Taken medicine n then mc was  perfectly normal  for me till last cycle.