Talk to Gynecologist on Can I Use Cyclogest Pessary 400

my question is that its mine 16 week of pregnancy .beginning of the pregnancy at week 6 i feel brownish bloody discharge doctors suggest me progesterone injection i use these till 14 weeks after this doctor stop mine injections.now i feel slight vaginal contractions and pressure in lower abdomen can i use cyclogest pessary till 9th month for protection of pregnancy because i had one abortion history due to baby growth stop in 3rd month of pregnancy . now i concive after 3 years i had no child before. kindly tell me .and tell me when i use asprin because i use asprin in 5 week of pregnancy with folic acid and duphaston but stop asprin when sporting start in 6 week of pregnancy .then when i started or not started . i already take aldomat twice a day for high bp.