glycerine suppository.. sooo constipated!

Help!... I've been constipated my whole like (TMI sorry!) but since I've been pregnant it got better...untill yesterday. I'm 7 weeks and I looked like 7 months!. I was so bloated, uncomfortable and desparate... I did half of a glycerine Suppository (fleet mini liquid one ) it worked, thank god, but just looking for some reassurance that this is ok...was also told I can start using my miralax again.. I was desperate, I had to try something. thank u!