preterm labor 20weeks 5days

Deandra
So yesterday was a scary day I'm currently 20 weeks I'll be 21 weeks this Friday 
Yesterday I got up normal went to bathroom to pee like normal wipe and saw I was bleeding not bright red  and I haven't had intercourse cause I no sometime that can cause  spotting 
So I didn't think much of it got to work starting feeling pressure in lower abdomen and also could feel it in my vagina . And was still spotting like wasn't enough to feel a pad I called the dr she told me to come in immediately they check heart rate and then pelvic exam my cervix was open I was admitted to hospital  and was put on tyco machine for monitoring and was showing irritability the nurse said so I'm 1 cm dialated and I was given suppositories to stop contractions  I'm scared and nervous due to it's too early in my pregancy to be havin complications and I no my unborn would not have a fighting chance being born Themis early so I'm on restrictions and not bed rest yet If I keep having complications they will put me in bed rest it's so hard going threw this my husband  away  and I'm in this alone he won't be back till after the baby born . Have anyone else had any complications early on ? this is my 3rd child  I jus hope I can make it at least till October